code refactor and improvement (#6203)

* chore: package code refactoring

* chore: component restructuring and refactor

* chore: comment create improvement

packages/constants/src/issue.ts

@@ -39,3 +39,8 @@ export enum EServerGroupByToFilterOptions {
   "project_id" = "project",
   "created_by" = "created_by",
 }
+
+export enum EIssueServiceType {
+  ISSUES = "issues",
+  EPICS = "epics",
+}

packages/types/src/issues/issue.d.ts

@@ -1,3 +1,4 @@
+import { EIssueServiceType } from "@plane/constants";
 import { TIssuePriorities } from "../issues";
 import { TIssueAttachment } from "./issue_attachment";
 import { TIssueLink } from "./issue_link";
@@ -39,6 +40,7 @@ export type TBaseIssue = {
   updated_by: string;
 
   is_draft: boolean;
+  is_epic?: boolean;
 };
 
 export type IssueRelation = {
@@ -121,3 +123,7 @@ export type TIssueDetailWidget =
   | "relations"
   | "links"
   | "attachments";
+
+export type TIssueServiceType =
+  | EIssueServiceType.ISSUES
+  | EIssueServiceType.EPICS;

packages/types/src/project/projects.d.ts

@@ -136,6 +136,7 @@ export type TProjectIssuesSearchParams = {
   issue_id?: string;
   workspace_search: boolean;
   target_date?: string;
+  epic?: boolean;
 };
 
 export interface ISearchIssueResponse {

web/ce/components/epics/epic-modal/index.ts

@@ -0,0 +1 @@
+export * from "./modal";

web/ce/components/epics/epic-modal/modal.tsx

@@ -0,0 +1,19 @@
+"use client";
+import React, { FC } from "react";
+import { TIssue } from "@plane/types";
+
+export interface EpicModalProps {
+  data?: Partial<TIssue>;
+  isOpen: boolean;
+  onClose: () => void;
+  beforeFormSubmit?: () => Promise<void>;
+  onSubmit?: (res: TIssue) => Promise<void>;
+  fetchIssueDetails?: boolean;
+  primaryButtonText?: {
+    default: string;
+    loading: string;
+  };
+  isProjectSelectionDisabled?: boolean;
+}
+
+export const CreateUpdateEpicModal: FC<EpicModalProps> = (props) => <></>;

web/ce/components/epics/index.ts

@@ -0,0 +1 @@
+export * from "./epic-modal";

web/ce/components/gantt-chart/dependency/dependency-paths.tsx

@@ -1 +1,9 @@
-export const TimelineDependencyPaths = () => <></>;
+import { FC } from "react";
+
+type Props = {
+  isEpic?: boolean;
+};
+export const TimelineDependencyPaths: FC<Props> = (props) => {
+  const { isEpic = false } = props;
+  return <></>;
+};

web/ce/components/issue-types/values/update.tsx

@@ -1,9 +1,12 @@
+import { TIssueServiceType } from "@plane/types";
+
 export type TIssueAdditionalPropertyValuesUpdateProps = {
   issueId: string;
   issueTypeId: string;
   projectId: string;
   workspaceSlug: string;
   isDisabled: boolean;
+  issueServiceType?: TIssueServiceType;
 };
 
 export const IssueAdditionalPropertyValuesUpdate: React.FC<TIssueAdditionalPropertyValuesUpdateProps> = () => <></>;

web/ce/hooks/use-debounced-duplicate-issues.tsx

@@ -1,6 +1,7 @@
 import { TDeDupeIssue } from "@plane/types";
 
 export const useDebouncedDuplicateIssues = (
+  workspaceSlug: string | undefined,
   workspaceId: string | undefined,
   projectId: string | undefined,
   formData: { name: string | undefined; description_html?: string | undefined; issueId?: string | undefined }

web/ce/store/issue/epic/filter.store.ts

@@ -0,0 +1,15 @@
+import { IProjectIssuesFilter, ProjectIssuesFilter } from "@/store/issue/project";
+import { IIssueRootStore } from "@/store/issue/root.store";
+
+// @ts-nocheck - This class will never be used, extending similar class to avoid type errors
+export type IProjectEpicsFilter = IProjectIssuesFilter;
+
+// @ts-nocheck - This class will never be used, extending similar class to avoid type errors
+export class ProjectEpicsFilter extends ProjectIssuesFilter implements IProjectEpicsFilter {
+  constructor(_rootStore: IIssueRootStore) {
+    super(_rootStore);
+
+    // root store
+    this.rootIssueStore = _rootStore;
+  }
+}

web/ce/store/issue/epic/index.ts

@@ -0,0 +1,2 @@
+export * from "./filter.store";
+export * from "./issue.store";

web/ce/store/issue/epic/issue.store.ts

@@ -0,0 +1,14 @@
+import { IProjectIssues, ProjectIssues } from "@/store/issue/project";
+import { IIssueRootStore } from "@/store/issue/root.store";
+import { IProjectEpicsFilter } from "./filter.store";
+
+// @ts-nocheck - This class will never be used, extending similar class to avoid type errors
+
+export type IProjectEpics = IProjectIssues;
+
+// @ts-nocheck - This class will never be used, extending similar class to avoid type errors
+export class ProjectEpics extends ProjectIssues implements IProjectEpics {
+  constructor(_rootStore: IIssueRootStore, issueFilterStore: IProjectEpicsFilter) {
+    super(_rootStore, issueFilterStore);
+  }
+}

web/ce/store/issue/issue-details/activity.store.ts

@@ -7,7 +7,14 @@ import uniq from "lodash/uniq";
 import update from "lodash/update";
 import { action, makeObservable, observable, runInAction } from "mobx";
 import { computedFn } from "mobx-utils";
-import { TIssueActivityComment, TIssueActivity, TIssueActivityMap, TIssueActivityIdMap } from "@plane/types";
+import { EIssueServiceType } from "@plane/constants";
+import {
+  TIssueActivityComment,
+  TIssueActivity,
+  TIssueActivityMap,
+  TIssueActivityIdMap,
+  TIssueServiceType,
+} from "@plane/types";
 // plane web constants
 import { EActivityFilterType } from "@/plane-web/constants/issues";
 // services
@@ -29,7 +36,7 @@ export interface IIssueActivityStoreActions {
 
 export interface IIssueActivityStore extends IIssueActivityStoreActions {
   // observables
-  sortOrder: 'asc' | 'desc'
+  sortOrder: "asc" | "desc";
   loader: TActivityLoader;
   activities: TIssueActivityIdMap;
   activityMap: TIssueActivityMap;
@@ -37,20 +44,24 @@ export interface IIssueActivityStore extends IIssueActivityStoreActions {
   getActivitiesByIssueId: (issueId: string) => string[] | undefined;
   getActivityById: (activityId: string) => TIssueActivity | undefined;
   getActivityCommentByIssueId: (issueId: string) => TIssueActivityComment[] | undefined;
-  toggleSortOrder: ()=>void;
+  toggleSortOrder: () => void;
 }
 
 export class IssueActivityStore implements IIssueActivityStore {
   // observables
-  sortOrder: "asc" | "desc" = 'asc';
+  sortOrder: "asc" | "desc" = "asc";
   loader: TActivityLoader = "fetch";
   activities: TIssueActivityIdMap = {};
   activityMap: TIssueActivityMap = {};
 
   // services
+  serviceType;
   issueActivityService;
 
-  constructor(protected store: CoreRootStore) {
+  constructor(
+    protected store: CoreRootStore,
+    serviceType: TIssueServiceType = EIssueServiceType.ISSUES
+  ) {
     makeObservable(this, {
       // observables
       sortOrder: observable.ref,
@@ -59,10 +70,11 @@ export class IssueActivityStore implements IIssueActivityStore {
       activityMap: observable,
       // actions
       fetchActivities: action,
-      toggleSortOrder: action
+      toggleSortOrder: action,
     });
+    this.serviceType = serviceType;
     // services
-    this.issueActivityService = new IssueActivityService();
+    this.issueActivityService = new IssueActivityService(this.serviceType);
   }
 
   // helper methods
@@ -81,8 +93,10 @@ export class IssueActivityStore implements IIssueActivityStore {
 
     let activityComments: TIssueActivityComment[] = [];
 
+    const currentStore = this.serviceType === EIssueServiceType.EPICS ? this.store.epic : this.store.issue;
+
     const activities = this.getActivitiesByIssueId(issueId) || [];
-    const comments = this.store.issue.issueDetail.comment.getCommentsByIssueId(issueId) || [];
+    const comments = currentStore.issueDetail.comment.getCommentsByIssueId(issueId) || [];
 
     activities.forEach((activityId) => {
       const activity = this.getActivityById(activityId);
@@ -95,7 +109,7 @@ export class IssueActivityStore implements IIssueActivityStore {
     });
 
     comments.forEach((commentId) => {
-      const comment = this.store.issue.issueDetail.comment.getCommentById(commentId);
+      const comment = currentStore.issueDetail.comment.getCommentById(commentId);
       if (!comment) return;
       activityComments.push({
         id: comment.id,
@@ -104,14 +118,14 @@ export class IssueActivityStore implements IIssueActivityStore {
       });
     });
 
-    activityComments = orderBy(activityComments, (e)=>new Date(e.created_at || 0), this.sortOrder);
+    activityComments = orderBy(activityComments, (e) => new Date(e.created_at || 0), this.sortOrder);
 
     return activityComments;
   });
 
-  toggleSortOrder = ()=>{
-    this.sortOrder = this.sortOrder === 'asc' ? 'desc' : 'asc';
-  }
+  toggleSortOrder = () => {
+    this.sortOrder = this.sortOrder === "asc" ? "desc" : "asc";
+  };
 
   // actions
   public async fetchActivities(

web/core/components/editor/lite-text-editor/lite-text-editor.tsx

@@ -1,4 +1,4 @@
-import React from "react";
+import React, { useState } from "react";
 // editor
 import { EditorRefApi, ILiteTextEditor, LiteTextEditorWithRef } from "@plane/editor";
 // types
@@ -27,6 +27,7 @@ interface LiteTextEditorWrapperProps
   showAccessSpecifier?: boolean;
   showSubmitButton?: boolean;
   isSubmitting?: boolean;
+  showToolbarInitially?: boolean;
   uploadFile: (file: File) => Promise<string>;
 }
 
@@ -41,10 +42,13 @@ export const LiteTextEditor = React.forwardRef<EditorRefApi, LiteTextEditorWrapp
     showAccessSpecifier = false,
     showSubmitButton = true,
     isSubmitting = false,
+    showToolbarInitially = true,
     placeholder = "Add comment...",
     uploadFile,
     ...rest
   } = props;
+  // states
+  const [isFocused, setIsFocused] = useState(showToolbarInitially);
   // store hooks
   const { data: currentUser } = useUser();
   const {
@@ -73,7 +77,11 @@ export const LiteTextEditor = React.forwardRef<EditorRefApi, LiteTextEditorWrapp
   const editorRef = isMutableRefObject<EditorRefApi>(ref) ? ref.current : null;
 
   return (
-    <div className="border border-custom-border-200 rounded p-3 space-y-3">
+    <div
+      className={cn("relative border border-custom-border-200 rounded p-3")}
+      onFocus={() => !showToolbarInitially && setIsFocused(true)}
+      onBlur={() => !showToolbarInitially && setIsFocused(false)}
+    >
       <LiteTextEditorWithRef
         ref={ref}
         disabledExtensions={disabledExtensions}
@@ -92,24 +100,31 @@ export const LiteTextEditor = React.forwardRef<EditorRefApi, LiteTextEditorWrapp
         containerClassName={cn(containerClassName, "relative")}
         {...rest}
       />
-      <IssueCommentToolbar
-        accessSpecifier={accessSpecifier}
-        executeCommand={(item) => {
-          // TODO: update this while toolbar homogenization
-          // @ts-expect-error type mismatch here
-          editorRef?.executeMenuItemCommand({
-            itemKey: item.itemKey,
-            ...item.extraProps,
-          });
-        }}
-        handleAccessChange={handleAccessChange}
-        handleSubmit={(e) => rest.onEnterKeyPress?.(e)}
-        isCommentEmpty={isEmpty}
-        isSubmitting={isSubmitting}
-        showAccessSpecifier={showAccessSpecifier}
-        editorRef={editorRef}
-        showSubmitButton={showSubmitButton}
-      />
+      <div
+        className={cn(
+          "transition-all duration-300 ease-out origin-top overflow-hidden",
+          isFocused ? "max-h-[200px] opacity-100 scale-y-100 mt-3" : "max-h-0 opacity-0 scale-y-0 invisible"
+        )}
+      >
+        <IssueCommentToolbar
+          accessSpecifier={accessSpecifier}
+          executeCommand={(item) => {
+            // TODO: update this while toolbar homogenization
+            // @ts-expect-error type mismatch here
+            editorRef?.executeMenuItemCommand({
+              itemKey: item.itemKey,
+              ...item.extraProps,
+            });
+          }}
+          handleAccessChange={handleAccessChange}
+          handleSubmit={(e) => rest.onEnterKeyPress?.(e)}
+          isCommentEmpty={isEmpty}
+          isSubmitting={isSubmitting}
+          showAccessSpecifier={showAccessSpecifier}
+          editorRef={editorRef}
+          showSubmitButton={showSubmitButton}
+        />
+      </div>
     </div>
   );
 });

web/core/components/gantt-chart/chart/main-content.tsx

@@ -56,6 +56,7 @@ type Props = {
     targetDate?: Date
   ) => ChartDataType | undefined;
   quickAdd?: React.JSX.Element | undefined;
+  isEpic?: boolean;
 };
 
 export const GanttChartMainContent: React.FC<Props> = observer((props) => {
@@ -79,6 +80,7 @@ export const GanttChartMainContent: React.FC<Props> = observer((props) => {
     updateCurrentViewRenderPayload,
     quickAdd,
     updateBlockDates,
+    isEpic = false,
   } = props;
   // refs
   const ganttContainerRef = useRef<HTMLDivElement>(null);
@@ -159,7 +161,7 @@ export const GanttChartMainContent: React.FC<Props> = observer((props) => {
         entities={{
           [GANTT_SELECT_GROUP]: blockIds ?? [],
         }}
-        disabled={!isBulkOperationsEnabled}
+        disabled={!isBulkOperationsEnabled || isEpic}
       >
         {(helpers) => (
           <>
@@ -187,6 +189,7 @@ export const GanttChartMainContent: React.FC<Props> = observer((props) => {
                 title={title}
                 quickAdd={quickAdd}
                 selectionHelpers={helpers}
+                isEpic={isEpic}
               />
               <div className="relative min-h-full h-max flex-shrink-0 flex-grow">
                 <ActiveChartView />
@@ -208,7 +211,7 @@ export const GanttChartMainContent: React.FC<Props> = observer((props) => {
                       selectionHelpers={helpers}
                       ganttContainerRef={ganttContainerRef}
                     />
-                    <TimelineDependencyPaths />
+                    <TimelineDependencyPaths isEpic={isEpic} />
                     <TimelineDraggablePath />
                     <GanttChartBlocksList
                       blockIds={blockIds}

web/core/components/gantt-chart/chart/root.tsx

@@ -41,6 +41,7 @@ type ChartViewRootProps = {
   canLoadMoreBlocks?: boolean;
   quickAdd?: React.JSX.Element | undefined;
   showToday: boolean;
+  isEpic?: boolean;
 };
 
 const timelineViewHelpers = {
@@ -71,6 +72,7 @@ export const ChartViewRoot: FC<ChartViewRootProps> = observer((props) => {
     quickAdd,
     showToday,
     updateBlockDates,
+    isEpic = false,
   } = props;
   // states
   const [itemsContainerWidth, setItemsContainerWidth] = useState(0);
@@ -204,6 +206,7 @@ export const ChartViewRoot: FC<ChartViewRootProps> = observer((props) => {
         updateCurrentViewRenderPayload={updateCurrentViewRenderPayload}
         quickAdd={quickAdd}
         updateBlockDates={updateBlockDates}
+        isEpic={isEpic}
       />
     </div>
   );

web/core/components/gantt-chart/root.tsx

@@ -26,6 +26,7 @@ type GanttChartRootProps = {
   bottomSpacing?: boolean;
   showAllBlocks?: boolean;
   showToday?: boolean;
+  isEpic?: boolean;
 };
 
 export const GanttChartRoot: FC<GanttChartRootProps> = observer((props) => {
@@ -50,6 +51,7 @@ export const GanttChartRoot: FC<GanttChartRootProps> = observer((props) => {
     showToday = true,
     quickAdd,
     updateBlockDates,
+    isEpic = false,
   } = props;
 
   const { setBlockIds } = useTimeLineChartStore();
@@ -81,6 +83,7 @@ export const GanttChartRoot: FC<GanttChartRootProps> = observer((props) => {
       quickAdd={quickAdd}
       showToday={showToday}
       updateBlockDates={updateBlockDates}
+      isEpic={isEpic}
     />
   );
 });

web/core/components/gantt-chart/sidebar/issues/block.tsx

@@ -19,10 +19,11 @@ type Props = {
   enableSelection: boolean;
   isDragging: boolean;
   selectionHelpers?: TSelectionHelper;
+  isEpic?: boolean;
 };
 
 export const IssuesSidebarBlock = observer((props: Props) => {
-  const { block, enableSelection, isDragging, selectionHelpers } = props;
+  const { block, enableSelection, isDragging, selectionHelpers, isEpic = false } = props;
   // store hooks
   const { updateActiveBlockId, isBlockActive, getNumberOfDaysFromPosition } = useTimeLineChartStore();
   const { getIsIssuePeeked } = useIssueDetail();
@@ -73,7 +74,7 @@ export const IssuesSidebarBlock = observer((props: Props) => {
         )}
         <div className="flex h-full flex-grow items-center justify-between gap-2 truncate">
           <div className="flex-grow truncate">
-            <IssueGanttSidebarBlock issueId={block.data.id} />
+            <IssueGanttSidebarBlock issueId={block.data.id} isEpic={isEpic} />
           </div>
           {duration && (
             <div className="flex-shrink-0 text-sm text-custom-text-200">

web/core/components/gantt-chart/sidebar/issues/sidebar.tsx

@@ -29,6 +29,7 @@ type Props = {
   enableSelection: boolean;
   showAllBlocks?: boolean;
   selectionHelpers?: TSelectionHelper;
+  isEpic?: boolean;
 };
 
 export const IssueGanttSidebar: React.FC<Props> = observer((props) => {
@@ -42,6 +43,7 @@ export const IssueGanttSidebar: React.FC<Props> = observer((props) => {
     ganttContainerRef,
     showAllBlocks = false,
     selectionHelpers,
+    isEpic = false,
   } = props;
 
   const { getBlockById } = useTimeLineChart(ETimeLineTypeType.ISSUE);
@@ -101,6 +103,7 @@ export const IssueGanttSidebar: React.FC<Props> = observer((props) => {
                       enableSelection={enableSelection}
                       isDragging={isDragging}
                       selectionHelpers={selectionHelpers}
+                      isEpic={isEpic}
                     />
                   )}
                 </GanttDnDHOC>

web/core/components/gantt-chart/sidebar/root.tsx

@@ -23,6 +23,7 @@ type Props = {
   title: string;
   quickAdd?: React.JSX.Element | undefined;
   selectionHelpers: TSelectionHelper;
+  isEpic?: boolean;
 };
 
 export const GanttChartSidebar: React.FC<Props> = observer((props) => {
@@ -38,6 +39,7 @@ export const GanttChartSidebar: React.FC<Props> = observer((props) => {
     title,
     quickAdd,
     selectionHelpers,
+    isEpic = false,
   } = props;
 
   const isGroupSelectionEmpty = selectionHelpers.isGroupSelected(GANTT_SELECT_GROUP) === "empty";
@@ -90,6 +92,7 @@ export const GanttChartSidebar: React.FC<Props> = observer((props) => {
             ganttContainerRef,
             loadMoreBlocks,
             selectionHelpers,
+            isEpic,
           })}
       </Row>
       {quickAdd ? quickAdd : null}

web/core/components/inbox/content/issue-root.tsx

@@ -65,11 +65,16 @@ export const InboxIssueMainContent: React.FC<Props> = observer((props) => {
   const projectDetails = issue?.project_id ? getProjectById(issue?.project_id) : undefined;
 
   // debounced duplicate issues swr
-  const { duplicateIssues } = useDebouncedDuplicateIssues(projectDetails?.workspace.toString(), projectId, {
-    name: issue?.name,
-    description_html: getTextContent(issue?.description_html),
-    issueId: issue?.id,
-  });
+  const { duplicateIssues } = useDebouncedDuplicateIssues(
+    workspaceSlug,
+    projectDetails?.workspace.toString(),
+    projectId,
+    {
+      name: issue?.name,
+      description_html: getTextContent(issue?.description_html),
+      issueId: issue?.id,
+    }
+  );
 
   if (!issue) return <></>;
 

web/core/components/inbox/modals/create-modal/create-root.tsx

@@ -87,10 +87,15 @@ export const InboxIssueCreateRoot: FC<TInboxIssueCreateRoot> = observer((props)
   const { getIndex } = getTabIndex(ETabIndices.INTAKE_ISSUE_FORM, isMobile);
 
   // debounced duplicate issues swr
-  const { duplicateIssues } = useDebouncedDuplicateIssues(projectDetails?.workspace.toString(), projectId, {
-    name: formData?.name,
-    description_html: formData?.description_html,
-  });
+  const { duplicateIssues } = useDebouncedDuplicateIssues(
+    workspaceSlug,
+    projectDetails?.workspace.toString(),
+    projectId,
+    {
+      name: formData?.name,
+      description_html: formData?.description_html,
+    }
+  );
 
   const handleEscKeyDown = (event: KeyboardEvent) => {
     if (descriptionEditorRef.current?.isEditorReadyToDiscard()) {

web/core/components/issues/attachment/attachment-item-list.tsx

@@ -2,6 +2,8 @@ import { FC, useCallback, useState } from "react";
 import { observer } from "mobx-react";
 import { FileRejection, useDropzone } from "react-dropzone";
 import { UploadCloud } from "lucide-react";
+import { EIssueServiceType } from "@plane/constants";
+import { TIssueServiceType } from "@plane/types";
 // hooks
 import { TOAST_TYPE, setToast } from "@plane/ui";
 import { useIssueDetail } from "@/hooks/store";
@@ -21,10 +23,18 @@ type TIssueAttachmentItemList = {
   issueId: string;
   attachmentHelpers: TAttachmentHelpers;
   disabled?: boolean;
+  issueServiceType?: TIssueServiceType;
 };
 
 export const IssueAttachmentItemList: FC<TIssueAttachmentItemList> = observer((props) => {
-  const { workspaceSlug, projectId, issueId, attachmentHelpers, disabled } = props;
+  const {
+    workspaceSlug,
+    projectId,
+    issueId,
+    attachmentHelpers,
+    disabled,
+    issueServiceType = EIssueServiceType.ISSUES,
+  } = props;
   // states
   const [isUploading, setIsUploading] = useState(false);
   // store hooks
@@ -33,7 +43,7 @@ export const IssueAttachmentItemList: FC<TIssueAttachmentItemList> = observer((p
     attachmentDeleteModalId,
     toggleDeleteAttachmentModal,
     fetchActivities,
-  } = useIssueDetail();
+  } = useIssueDetail(issueServiceType);
   const { operations: attachmentOperations, snapshot: attachmentSnapshot } = attachmentHelpers;
   const { create: createAttachment } = attachmentOperations;
   const { uploadStatus } = attachmentSnapshot;
@@ -104,6 +114,7 @@ export const IssueAttachmentItemList: FC<TIssueAttachmentItemList> = observer((p
               onClose={() => toggleDeleteAttachmentModal(null)}
               attachmentOperations={attachmentOperations}
               attachmentId={attachmentDeleteModalId}
+              issueServiceType={issueServiceType}
             />
           )}
           <div
@@ -122,7 +133,12 @@ export const IssueAttachmentItemList: FC<TIssueAttachmentItemList> = observer((p
               </div>
             )}
             {issueAttachments?.map((attachmentId) => (
-              <IssueAttachmentsListItem key={attachmentId} attachmentId={attachmentId} disabled={disabled} />
+              <IssueAttachmentsListItem
+                key={attachmentId}
+                attachmentId={attachmentId}
+                disabled={disabled}
+                issueServiceType={issueServiceType}
+              />
             ))}
           </div>
         </>

web/core/components/issues/attachment/attachment-list-item.tsx

@@ -3,6 +3,8 @@
 import { FC } from "react";
 import { observer } from "mobx-react";
 import { Trash } from "lucide-react";
+import { EIssueServiceType } from "@plane/constants";
+import { TIssueServiceType } from "@plane/types";
 // ui
 import { CustomMenu, Tooltip } from "@plane/ui";
 // components
@@ -19,17 +21,18 @@ import { usePlatformOS } from "@/hooks/use-platform-os";
 type TIssueAttachmentsListItem = {
   attachmentId: string;
   disabled?: boolean;
+  issueServiceType?: TIssueServiceType;
 };
 
 export const IssueAttachmentsListItem: FC<TIssueAttachmentsListItem> = observer((props) => {
   // props
-  const { attachmentId, disabled } = props;
+  const { attachmentId, disabled, issueServiceType = EIssueServiceType.ISSUES } = props;
   // store hooks
   const { getUserDetails } = useMember();
   const {
     attachment: { getAttachmentById },
     toggleDeleteAttachmentModal,
-  } = useIssueDetail();
+  } = useIssueDetail(issueServiceType);
   // derived values
   const attachment = attachmentId ? getAttachmentById(attachmentId) : undefined;
   const fileName = getFileName(attachment?.attributes.name ?? "");

web/core/components/issues/attachment/delete-attachment-modal.tsx

@@ -1,6 +1,9 @@
 import { FC, useState } from "react";
 import { observer } from "mobx-react";
+// constants
+import { EIssueServiceType } from "@plane/constants";
 // types
+import { TIssueServiceType } from "@plane/types";
 // ui
 import { AlertModalCore } from "@plane/ui";
 // helper
@@ -17,17 +20,18 @@ type Props = {
   onClose: () => void;
   attachmentId: string;
   attachmentOperations: TAttachmentOperationsRemoveModal;
+  issueServiceType?: TIssueServiceType;
 };
 
 export const IssueAttachmentDeleteModal: FC<Props> = observer((props) => {
-  const { isOpen, onClose, attachmentId, attachmentOperations } = props;
+  const { isOpen, onClose, attachmentId, attachmentOperations, issueServiceType = EIssueServiceType.ISSUES } = props;
   // states
   const [loader, setLoader] = useState(false);
 
   // store hooks
   const {
     attachment: { getAttachmentById },
-  } = useIssueDetail();
+  } = useIssueDetail(issueServiceType);
 
   // derived values
   const attachment = attachmentId ? getAttachmentById(attachmentId) : undefined;

web/core/components/issues/filters.tsx

@@ -4,24 +4,17 @@ import { useCallback, useState } from "react";
 import { observer } from "mobx-react";
 // types
 import { IIssueDisplayFilterOptions, IIssueDisplayProperties, IIssueFilterOptions } from "@plane/types";
-// ui
 import { Button } from "@plane/ui";
-
+// components
 import { DisplayFiltersSelection, FiltersDropdown, FilterSelection, LayoutSelection } from "@/components/issues";
 // constants
-import {
-  EIssueFilterType,
-  EIssuesStoreType,
-  EIssueLayoutTypes,
-  ISSUE_DISPLAY_FILTERS_BY_LAYOUT,
-} from "@/constants/issue";
+import { EIssueFilterType, EIssueLayoutTypes, EIssuesStoreType, ISSUE_STORE_TO_FILTERS_MAP } from "@/constants/issue";
 // helpers
 import { isIssueFilterActive } from "@/helpers/filter.helper";
 // hooks
 import { useLabel, useProjectState, useMember, useIssues } from "@/hooks/store";
 // plane web types
 import { TProject } from "@/plane-web/types";
-// local components
 import { ProjectAnalyticsModal } from "../analytics";
 
 type Props = {
@@ -29,8 +22,16 @@ type Props = {
   projectId: string;
   workspaceSlug: string;
   canUserCreateIssue: boolean | undefined;
+  storeType?: EIssuesStoreType.PROJECT | EIssuesStoreType.EPIC;
 };
-const HeaderFilters = observer(({ currentProjectDetails, projectId, workspaceSlug, canUserCreateIssue }: Props) => {
+const HeaderFilters = observer((props: Props) => {
+  const {
+    currentProjectDetails,
+    projectId,
+    workspaceSlug,
+    canUserCreateIssue,
+    storeType = EIssuesStoreType.PROJECT,
+  } = props;
   // states
   const [analyticsModal, setAnalyticsModal] = useState(false);
   // store hooks
@@ -39,11 +40,12 @@ const HeaderFilters = observer(({ currentProjectDetails, projectId, workspaceSlu
   } = useMember();
   const {
     issuesFilter: { issueFilters, updateFilters },
-  } = useIssues(EIssuesStoreType.PROJECT);
-
+  } = useIssues(storeType);
   const { projectStates } = useProjectState();
   const { projectLabels } = useLabel();
+  // derived values
   const activeLayout = issueFilters?.displayFilters?.layout;
+  const layoutDisplayFiltersOptions = ISSUE_STORE_TO_FILTERS_MAP[storeType]?.[activeLayout];
 
   const handleFiltersUpdate = useCallback(
     (key: keyof IIssueFilterOptions, value: string | string[]) => {
@@ -113,7 +115,7 @@ const HeaderFilters = observer(({ currentProjectDetails, projectId, workspaceSlu
           handleFiltersUpdate={handleFiltersUpdate}
           displayFilters={issueFilters?.displayFilters ?? {}}
           handleDisplayFiltersUpdate={handleDisplayFilters}
-          layoutDisplayFiltersOptions={activeLayout ? ISSUE_DISPLAY_FILTERS_BY_LAYOUT.issues[activeLayout] : undefined}
+          layoutDisplayFiltersOptions={layoutDisplayFiltersOptions}
           labels={projectLabels}
           memberIds={projectMemberIds ?? undefined}
           states={projectStates}
@@ -123,7 +125,7 @@ const HeaderFilters = observer(({ currentProjectDetails, projectId, workspaceSlu
       </FiltersDropdown>
       <FiltersDropdown title="Display" placement="bottom-end">
         <DisplayFiltersSelection
-          layoutDisplayFiltersOptions={activeLayout ? ISSUE_DISPLAY_FILTERS_BY_LAYOUT.issues[activeLayout] : undefined}
+          layoutDisplayFiltersOptions={layoutDisplayFiltersOptions}
           displayFilters={issueFilters?.displayFilters ?? {}}
           handleDisplayFiltersUpdate={handleDisplayFilters}
           displayProperties={issueFilters?.displayProperties ?? {}}

web/core/components/issues/issue-detail-widgets/attachments/content.tsx

@@ -1,6 +1,8 @@
 "use client";
 import React, { FC } from "react";
 import { observer } from "mobx-react";
+import { EIssueServiceType } from "@plane/constants";
+import { TIssueServiceType } from "@plane/types";
 // components
 import { IssueAttachmentItemList } from "@/components/issues/attachment";
 // helper
@@ -11,12 +13,13 @@ type Props = {
   projectId: string;
   issueId: string;
   disabled: boolean;
+  issueServiceType?: TIssueServiceType;
 };
 
 export const IssueAttachmentsCollapsibleContent: FC<Props> = observer((props) => {
-  const { workspaceSlug, projectId, issueId, disabled } = props;
+  const { workspaceSlug, projectId, issueId, disabled, issueServiceType = EIssueServiceType.ISSUES } = props;
   // helper
-  const attachmentHelpers = useAttachmentOperations(workspaceSlug, projectId, issueId);
+  const attachmentHelpers = useAttachmentOperations(workspaceSlug, projectId, issueId, issueServiceType);
   return (
     <IssueAttachmentItemList
       workspaceSlug={workspaceSlug}
@@ -24,6 +27,7 @@ export const IssueAttachmentsCollapsibleContent: FC<Props> = observer((props) =>
       issueId={issueId}
       disabled={disabled}
       attachmentHelpers={attachmentHelpers}
+      issueServiceType={issueServiceType}
     />
   );
 });

web/core/components/issues/issue-detail-widgets/attachments/helper.tsx

@@ -1,5 +1,7 @@
 "use client";
 import { useMemo } from "react";
+import { EIssueServiceType } from "@plane/constants";
+import { TIssueServiceType } from "@plane/types";
 // plane ui
 import { TOAST_TYPE, setPromiseToast, setToast } from "@plane/ui";
 // hooks
@@ -24,11 +26,12 @@ export type TAttachmentHelpers = {
 export const useAttachmentOperations = (
   workspaceSlug: string,
   projectId: string,
-  issueId: string
+  issueId: string,
+  issueServiceType: TIssueServiceType = EIssueServiceType.ISSUES
 ): TAttachmentHelpers => {
   const {
     attachment: { createAttachment, removeAttachment, getAttachmentsUploadStatusByIssueId },
-  } = useIssueDetail();
+  } = useIssueDetail(issueServiceType);
   const { captureIssueEvent } = useEventTracker();
 
   const attachmentOperations: TAttachmentOperations = useMemo(

web/core/components/issues/issue-detail-widgets/attachments/quick-action-button.tsx

@@ -4,6 +4,8 @@ import React, { FC, useCallback, useState } from "react";
 import { observer } from "mobx-react";
 import { FileRejection, useDropzone } from "react-dropzone";
 import { Plus } from "lucide-react";
+import { EIssueServiceType } from "@plane/constants";
+import { TIssueServiceType } from "@plane/types";
 // plane ui
 import { TOAST_TYPE, setToast } from "@plane/ui";
 // hooks
@@ -19,18 +21,31 @@ type Props = {
   issueId: string;
   customButton?: React.ReactNode;
   disabled?: boolean;
+  issueServiceType?: TIssueServiceType;
 };
 
 export const IssueAttachmentActionButton: FC<Props> = observer((props) => {
-  const { workspaceSlug, projectId, issueId, customButton, disabled = false } = props;
+  const {
+    workspaceSlug,
+    projectId,
+    issueId,
+    customButton,
+    disabled = false,
+    issueServiceType = EIssueServiceType.ISSUES,
+  } = props;
   // state
   const [isLoading, setIsLoading] = useState(false);
   // store hooks
-  const { setLastWidgetAction, fetchActivities } = useIssueDetail();
+  const { setLastWidgetAction, fetchActivities } = useIssueDetail(issueServiceType);
   // file size
   const { maxFileSize } = useFileSize();
   // operations
-  const { operations: attachmentOperations } = useAttachmentOperations(workspaceSlug, projectId, issueId);
+  const { operations: attachmentOperations } = useAttachmentOperations(
+    workspaceSlug,
+    projectId,
+    issueId,
+    issueServiceType
+  );
   // handlers
   const handleFetchPropertyActivities = useCallback(() => {
     fetchActivities(workspaceSlug, projectId, issueId);

web/core/components/issues/issue-detail-widgets/attachments/root.tsx

@@ -1,6 +1,8 @@
 "use client";
 import React, { FC } from "react";
 import { observer } from "mobx-react";
+import { EIssueServiceType } from "@plane/constants";
+import { TIssueServiceType } from "@plane/types";
 import { Collapsible } from "@plane/ui";
 // components
 import {
@@ -15,12 +17,13 @@ type Props = {
   projectId: string;
   issueId: string;
   disabled?: boolean;
+  issueServiceType?: TIssueServiceType;
 };
 
 export const AttachmentsCollapsible: FC<Props> = observer((props) => {
-  const { workspaceSlug, projectId, issueId, disabled = false } = props;
+  const { workspaceSlug, projectId, issueId, disabled = false, issueServiceType = EIssueServiceType.ISSUES } = props;
   // store hooks
-  const { openWidgets, toggleOpenWidget } = useIssueDetail();
+  const { openWidgets, toggleOpenWidget } = useIssueDetail(issueServiceType);
 
   // derived values
   const isCollapsibleOpen = openWidgets.includes("attachments");
@@ -36,6 +39,7 @@ export const AttachmentsCollapsible: FC<Props> = observer((props) => {
           projectId={projectId}
           issueId={issueId}
           disabled={disabled}
+          issueServiceType={issueServiceType}
         />
       }
       buttonClassName="w-full"
@@ -45,6 +49,7 @@ export const AttachmentsCollapsible: FC<Props> = observer((props) => {
         projectId={projectId}
         issueId={issueId}
         disabled={disabled}
+        issueServiceType={issueServiceType}
       />
     </Collapsible>
   );

web/core/components/issues/issue-detail-widgets/attachments/title.tsx

@@ -1,6 +1,8 @@
 "use client";
 import React, { FC, useMemo } from "react";
 import { observer } from "mobx-react";
+import { EIssueServiceType } from "@plane/constants";
+import { TIssueServiceType } from "@plane/types";
 import { CollapsibleButton } from "@plane/ui";
 // components
 import { IssueAttachmentActionButton } from "@/components/issues/issue-detail-widgets";
@@ -13,14 +15,15 @@ type Props = {
   projectId: string;
   issueId: string;
   disabled: boolean;
+  issueServiceType?: TIssueServiceType;
 };
 
 export const IssueAttachmentsCollapsibleTitle: FC<Props> = observer((props) => {
-  const { isOpen, workspaceSlug, projectId, issueId, disabled } = props;
+  const { isOpen, workspaceSlug, projectId, issueId, disabled, issueServiceType = EIssueServiceType.ISSUES } = props;
   // store hooks
   const {
     issue: { getIssueById },
-  } = useIssueDetail();
+  } = useIssueDetail(issueServiceType);
 
   // derived values
   const issue = getIssueById(issueId);
@@ -48,6 +51,7 @@ export const IssueAttachmentsCollapsibleTitle: FC<Props> = observer((props) => {
             projectId={projectId}
             issueId={issueId}
             disabled={disabled}
+            issueServiceType={issueServiceType}
           />
         )
       }

web/core/components/issues/issue-detail-widgets/links/content.tsx

@@ -1,5 +1,7 @@
 "use client";
 import React, { FC } from "react";
+import { EIssueServiceType } from "@plane/constants";
+import { TIssueServiceType } from "@plane/types";
 // components
 import { LinkList } from "../../issue-detail/links";
 // helper
@@ -10,13 +12,21 @@ type Props = {
   projectId: string;
   issueId: string;
   disabled: boolean;
+  issueServiceType?: TIssueServiceType;
 };
 
 export const IssueLinksCollapsibleContent: FC<Props> = (props) => {
-  const { workspaceSlug, projectId, issueId, disabled } = props;
+  const { workspaceSlug, projectId, issueId, disabled, issueServiceType = EIssueServiceType.ISSUES } = props;
 
   // helper
-  const handleLinkOperations = useLinkOperations(workspaceSlug, projectId, issueId);
+  const handleLinkOperations = useLinkOperations(workspaceSlug, projectId, issueId, issueServiceType);
 
-  return <LinkList issueId={issueId} linkOperations={handleLinkOperations} disabled={disabled} />;
+  return (
+    <LinkList
+      issueId={issueId}
+      linkOperations={handleLinkOperations}
+      disabled={disabled}
+      issueServiceType={issueServiceType}
+    />
+  );
 };

web/core/components/issues/issue-detail-widgets/links/helper.tsx

@@ -1,14 +1,20 @@
 "use client";
 import { useMemo } from "react";
-import { TIssueLink } from "@plane/types";
+import { EIssueServiceType } from "@plane/constants";
+import { TIssueLink, TIssueServiceType } from "@plane/types";
 import { TOAST_TYPE, setToast } from "@plane/ui";
 // hooks
 import { useIssueDetail } from "@/hooks/store";
 // types
 import { TLinkOperations } from "../../issue-detail/links";
 
-export const useLinkOperations = (workspaceSlug: string, projectId: string, issueId: string): TLinkOperations => {
-  const { createLink, updateLink, removeLink } = useIssueDetail();
+export const useLinkOperations = (
+  workspaceSlug: string,
+  projectId: string,
+  issueId: string,
+  issueServiceType: TIssueServiceType = EIssueServiceType.ISSUES
+): TLinkOperations => {
+  const { createLink, updateLink, removeLink } = useIssueDetail(issueServiceType);
 
   const handleLinkOperations: TLinkOperations = useMemo(
     () => ({

web/core/components/issues/issue-detail-widgets/links/quick-action-button.tsx

@@ -2,18 +2,21 @@
 import React, { FC } from "react";
 import { observer } from "mobx-react";
 import { Plus } from "lucide-react";
+import { EIssueServiceType } from "@plane/constants";
+import { TIssueServiceType } from "@plane/types";
 // hooks
 import { useIssueDetail } from "@/hooks/store";
 
 type Props = {
   customButton?: React.ReactNode;
   disabled?: boolean;
+  issueServiceType?: TIssueServiceType;
 };
 
 export const IssueLinksActionButton: FC<Props> = observer((props) => {
-  const { customButton, disabled = false } = props;
+  const { customButton, disabled = false, issueServiceType = EIssueServiceType.ISSUES } = props;
   // store hooks
-  const { toggleIssueLinkModal } = useIssueDetail();
+  const { toggleIssueLinkModal } = useIssueDetail(issueServiceType);
 
   // handlers
   const handleOnClick = (e: React.MouseEvent<HTMLButtonElement, MouseEvent>) => {

web/core/components/issues/issue-detail-widgets/links/root.tsx

@@ -1,6 +1,8 @@
 "use client";
 import React, { FC } from "react";
 import { observer } from "mobx-react";
+import { EIssueServiceType } from "@plane/constants";
+import { TIssueServiceType } from "@plane/types";
 import { Collapsible } from "@plane/ui";
 // components
 import { IssueLinksCollapsibleContent, IssueLinksCollapsibleTitle } from "@/components/issues/issue-detail-widgets";
@@ -12,12 +14,13 @@ type Props = {
   projectId: string;
   issueId: string;
   disabled?: boolean;
+  issueServiceType?: TIssueServiceType;
 };
 
 export const LinksCollapsible: FC<Props> = observer((props) => {
-  const { workspaceSlug, projectId, issueId, disabled = false } = props;
+  const { workspaceSlug, projectId, issueId, disabled = false, issueServiceType = EIssueServiceType.ISSUES } = props;
   // store hooks
-  const { openWidgets, toggleOpenWidget } = useIssueDetail();
+  const { openWidgets, toggleOpenWidget } = useIssueDetail(issueServiceType);
 
   // derived values
   const isCollapsibleOpen = openWidgets.includes("links");
@@ -26,7 +29,14 @@ export const LinksCollapsible: FC<Props> = observer((props) => {
     <Collapsible
       isOpen={isCollapsibleOpen}
       onToggle={() => toggleOpenWidget("links")}
-      title={<IssueLinksCollapsibleTitle isOpen={isCollapsibleOpen} issueId={issueId} disabled={disabled} />}
+      title={
+        <IssueLinksCollapsibleTitle
+          isOpen={isCollapsibleOpen}
+          issueId={issueId}
+          disabled={disabled}
+          issueServiceType={issueServiceType}
+        />
+      }
       buttonClassName="w-full"
     >
       <IssueLinksCollapsibleContent
@@ -34,6 +44,7 @@ export const LinksCollapsible: FC<Props> = observer((props) => {
         projectId={projectId}
         issueId={issueId}
         disabled={disabled}
+        issueServiceType={issueServiceType}
       />
     </Collapsible>
   );

web/core/components/issues/issue-detail-widgets/links/title.tsx

@@ -1,6 +1,8 @@
 "use client";
 import React, { FC, useMemo } from "react";
 import { observer } from "mobx-react";
+import { EIssueServiceType } from "@plane/constants";
+import { TIssueServiceType } from "@plane/types";
 import { CollapsibleButton } from "@plane/ui";
 // components
 import { IssueLinksActionButton } from "@/components/issues/issue-detail-widgets";
@@ -11,14 +13,15 @@ type Props = {
   isOpen: boolean;
   issueId: string;
   disabled: boolean;
+  issueServiceType?: TIssueServiceType;
 };
 
 export const IssueLinksCollapsibleTitle: FC<Props> = observer((props) => {
-  const { isOpen, issueId, disabled } = props;
+  const { isOpen, issueId, disabled, issueServiceType = EIssueServiceType.ISSUES } = props;
   // store hooks
   const {
     issue: { getIssueById },
-  } = useIssueDetail();
+  } = useIssueDetail(issueServiceType);
 
   // derived values
   const issue = getIssueById(issueId);
@@ -40,7 +43,9 @@ export const IssueLinksCollapsibleTitle: FC<Props> = observer((props) => {
       isOpen={isOpen}
       title="Links"
       indicatorElement={indicatorElement}
-      actionItemElement={!disabled && <IssueLinksActionButton disabled={disabled} />}
+      actionItemElement={
+        !disabled && <IssueLinksActionButton issueServiceType={issueServiceType} disabled={disabled} />
+      }
     />
   );
 });

web/core/components/issues/issue-detail-widgets/relations/content.tsx

@@ -1,7 +1,8 @@
 "use client";
 import { FC, useState } from "react";
 import { observer } from "mobx-react";
-import { TIssue, TIssueRelationIdMap } from "@plane/types";
+import { EIssueServiceType } from "@plane/constants";
+import { TIssue, TIssueRelationIdMap, TIssueServiceType } from "@plane/types";
 import { Collapsible } from "@plane/ui";
 // components
 import { RelationIssueList } from "@/components/issues";
@@ -20,6 +21,7 @@ type Props = {
   projectId: string;
   issueId: string;
   disabled: boolean;
+  issueServiceType?: TIssueServiceType;
 };
 
 type TIssueCrudState = { toggle: boolean; issueId: string | undefined; issue: TIssue | undefined };
@@ -33,7 +35,7 @@ export type TRelationObject = {
 };
 
 export const RelationsCollapsibleContent: FC<Props> = observer((props) => {
-  const { workspaceSlug, projectId, issueId, disabled = false } = props;
+  const { workspaceSlug, projectId, issueId, disabled = false, issueServiceType = EIssueServiceType.ISSUES } = props;
   // state
   const [issueCrudState, setIssueCrudState] = useState<{
     update: TIssueCrudState;
@@ -56,7 +58,7 @@ export const RelationsCollapsibleContent: FC<Props> = observer((props) => {
     relation: { getRelationsByIssueId },
     toggleDeleteIssueModal,
     toggleCreateIssueModal,
-  } = useIssueDetail();
+  } = useIssueDetail(issueServiceType);
 
   // helper
   const issueOperations = useRelationOperations();
@@ -129,6 +131,7 @@ export const RelationsCollapsibleContent: FC<Props> = observer((props) => {
                 disabled={disabled}
                 issueOperations={issueOperations}
                 handleIssueCrudState={handleIssueCrudState}
+                issueServiceType={issueServiceType}
               />
             </Collapsible>
           </div>

web/core/components/issues/issue-detail-widgets/relations/helper.tsx

@@ -1,7 +1,8 @@
 "use client";
 import { useMemo } from "react";
 import { usePathname } from "next/navigation";
-import { TIssue } from "@plane/types";
+import { EIssueServiceType } from "@plane/constants";
+import { TIssue, TIssueServiceType } from "@plane/types";
 import { TOAST_TYPE, setToast } from "@plane/ui";
 // constants
 import { ISSUE_DELETED, ISSUE_UPDATED } from "@/constants/event-tracker";
@@ -16,8 +17,10 @@ export type TRelationIssueOperations = {
   remove: (workspaceSlug: string, projectId: string, issueId: string) => Promise<void>;
 };
 
-export const useRelationOperations = (): TRelationIssueOperations => {
-  const { updateIssue, removeIssue } = useIssueDetail();
+export const useRelationOperations = (
+  issueServiceType: TIssueServiceType = EIssueServiceType.ISSUES
+): TRelationIssueOperations => {
+  const { updateIssue, removeIssue } = useIssueDetail(issueServiceType);
   const { captureIssueEvent } = useEventTracker();
   const pathname = usePathname();
 

web/core/components/issues/issue-detail-widgets/relations/quick-action-button.tsx

@@ -2,6 +2,8 @@
 import React, { FC } from "react";
 import { observer } from "mobx-react";
 import { Plus } from "lucide-react";
+import { EIssueServiceType } from "@plane/constants";
+import { TIssueServiceType } from "@plane/types";
 import { CustomMenu } from "@plane/ui";
 // hooks
 import { useIssueDetail } from "@/hooks/store";
@@ -13,12 +15,13 @@ type Props = {
   issueId: string;
   customButton?: React.ReactNode;
   disabled?: boolean;
+  issueServiceType?: TIssueServiceType;
 };
 
 export const RelationActionButton: FC<Props> = observer((props) => {
-  const { customButton, issueId, disabled = false } = props;
+  const { customButton, issueId, disabled = false, issueServiceType = EIssueServiceType.ISSUES } = props;
   // store hooks
-  const { toggleRelationModal, setRelationKey } = useIssueDetail();
+  const { toggleRelationModal, setRelationKey } = useIssueDetail(issueServiceType);
 
   const ISSUE_RELATION_OPTIONS = useTimeLineRelationOptions();
 

web/core/components/issues/issue-detail-widgets/relations/root.tsx

@@ -1,6 +1,8 @@
 "use client";
 import React, { FC } from "react";
 import { observer } from "mobx-react";
+import { EIssueServiceType } from "@plane/constants";
+import { TIssueServiceType } from "@plane/types";
 import { Collapsible } from "@plane/ui";
 // components
 import { RelationsCollapsibleContent, RelationsCollapsibleTitle } from "@/components/issues/issue-detail-widgets";
@@ -12,12 +14,13 @@ type Props = {
   projectId: string;
   issueId: string;
   disabled?: boolean;
+  issueServiceType?: TIssueServiceType;
 };
 
 export const RelationsCollapsible: FC<Props> = observer((props) => {
-  const { workspaceSlug, projectId, issueId, disabled = false } = props;
+  const { workspaceSlug, projectId, issueId, disabled = false, issueServiceType = EIssueServiceType.ISSUES } = props;
   // store hooks
-  const { openWidgets, toggleOpenWidget } = useIssueDetail();
+  const { openWidgets, toggleOpenWidget } = useIssueDetail(issueServiceType);
 
   // derived values
   const isCollapsibleOpen = openWidgets.includes("relations");
@@ -26,7 +29,14 @@ export const RelationsCollapsible: FC<Props> = observer((props) => {
     <Collapsible
       isOpen={isCollapsibleOpen}
       onToggle={() => toggleOpenWidget("relations")}
-      title={<RelationsCollapsibleTitle isOpen={isCollapsibleOpen} issueId={issueId} disabled={disabled} />}
+      title={
+        <RelationsCollapsibleTitle
+          isOpen={isCollapsibleOpen}
+          issueId={issueId}
+          disabled={disabled}
+          issueServiceType={issueServiceType}
+        />
+      }
       buttonClassName="w-full"
     >
       <RelationsCollapsibleContent
@@ -34,6 +44,7 @@ export const RelationsCollapsible: FC<Props> = observer((props) => {
         projectId={projectId}
         issueId={issueId}
         disabled={disabled}
+        issueServiceType={issueServiceType}
       />
     </Collapsible>
   );

web/core/components/issues/issue-detail-widgets/relations/title.tsx

@@ -1,6 +1,8 @@
 "use client";
 import React, { FC, useMemo } from "react";
 import { observer } from "mobx-react";
+import { EIssueServiceType } from "@plane/constants";
+import { TIssueServiceType } from "@plane/types";
 import { CollapsibleButton } from "@plane/ui";
 // components
 import { RelationActionButton } from "@/components/issues/issue-detail-widgets";
@@ -13,14 +15,15 @@ type Props = {
   isOpen: boolean;
   issueId: string;
   disabled: boolean;
+  issueServiceType?: TIssueServiceType;
 };
 
 export const RelationsCollapsibleTitle: FC<Props> = observer((props) => {
-  const { isOpen, issueId, disabled } = props;
+  const { isOpen, issueId, disabled, issueServiceType = EIssueServiceType.ISSUES } = props;
   // store hook
   const {
     relation: { getRelationCountByIssueId },
-  } = useIssueDetail();
+  } = useIssueDetail(issueServiceType);
 
   const ISSUE_RELATION_OPTIONS = useTimeLineRelationOptions();
   // derived values
@@ -41,7 +44,9 @@ export const RelationsCollapsibleTitle: FC<Props> = observer((props) => {
       isOpen={isOpen}
       title="Relations"
       indicatorElement={indicatorElement}
-      actionItemElement={!disabled && <RelationActionButton issueId={issueId} disabled={disabled} />}
+      actionItemElement={
+        !disabled && <RelationActionButton issueId={issueId} disabled={disabled} issueServiceType={issueServiceType} />
+      }
     />
   );
 });

web/core/components/issues/issue-detail-widgets/sub-issues/content.tsx

@@ -1,7 +1,8 @@
 "use client";
 import React, { FC, useCallback, useEffect, useState } from "react";
 import { observer } from "mobx-react";
-import { TIssue } from "@plane/types";
+import { EIssueServiceType } from "@plane/constants";
+import { TIssue, TIssueServiceType } from "@plane/types";
 // components
 import { DeleteIssueModal } from "@/components/issues/delete-issue-modal";
 import { CreateUpdateIssueModal } from "@/components/issues/issue-modal";
@@ -16,12 +17,13 @@ type Props = {
   projectId: string;
   parentIssueId: string;
   disabled: boolean;
+  issueServiceType?: TIssueServiceType;
 };
 
 type TIssueCrudState = { toggle: boolean; parentIssueId: string | undefined; issue: TIssue | undefined };
 
 export const SubIssuesCollapsibleContent: FC<Props> = observer((props) => {
-  const { workspaceSlug, projectId, parentIssueId, disabled } = props;
+  const { workspaceSlug, projectId, parentIssueId, disabled, issueServiceType = EIssueServiceType.ISSUES } = props;
   // state
   const [issueCrudState, setIssueCrudState] = useState<{
     create: TIssueCrudState;
@@ -58,7 +60,7 @@ export const SubIssuesCollapsibleContent: FC<Props> = observer((props) => {
   } = useIssueDetail();
 
   // helpers
-  const subIssueOperations = useSubIssueOperations();
+  const subIssueOperations = useSubIssueOperations(issueServiceType);
   const subIssueHelpers = subIssueHelpersByIssueId(`${parentIssueId}_root`);
 
   // handler
@@ -95,7 +97,6 @@ export const SubIssuesCollapsibleContent: FC<Props> = observer((props) => {
 
   useEffect(() => {
     handleFetchSubIssues();
-
     return () => {
       handleFetchSubIssues();
     };
@@ -123,6 +124,7 @@ export const SubIssuesCollapsibleContent: FC<Props> = observer((props) => {
           disabled={!disabled}
           handleIssueCrudState={handleIssueCrudState}
           subIssueOperations={subIssueOperations}
+          issueServiceType={issueServiceType}
         />
       )}
 

web/core/components/issues/issue-detail-widgets/sub-issues/helper.tsx

@@ -1,7 +1,8 @@
 "use client";
 import { useMemo } from "react";
 import { usePathname } from "next/navigation";
-import { TIssue } from "@plane/types";
+import { EIssueServiceType } from "@plane/constants";
+import { TIssue, TIssueServiceType } from "@plane/types";
 import { TOAST_TYPE, setToast } from "@plane/ui";
 // helper
 import { copyTextToClipboard } from "@/helpers/string.helper";
@@ -16,15 +17,17 @@ export type TRelationIssueOperations = {
   remove: (workspaceSlug: string, projectId: string, issueId: string) => Promise<void>;
 };
 
-export const useSubIssueOperations = (): TSubIssueOperations => {
+export const useSubIssueOperations = (
+  issueServiceType: TIssueServiceType = EIssueServiceType.ISSUES
+): TSubIssueOperations => {
   const {
     subIssues: { setSubIssueHelpers },
     fetchSubIssues,
     createSubIssues,
     updateSubIssue,
-    removeSubIssue,
     deleteSubIssue,
   } = useIssueDetail();
+  const { removeSubIssue } = useIssueDetail(issueServiceType);
   const { captureIssueEvent } = useEventTracker();
   const pathname = usePathname();
 

web/core/components/issues/issue-detail-widgets/sub-issues/quick-action-button.tsx

@@ -2,7 +2,8 @@
 import React, { FC } from "react";
 import { observer } from "mobx-react";
 import { LayersIcon, Plus } from "lucide-react";
-import { TIssue } from "@plane/types";
+import { EIssueServiceType } from "@plane/constants";
+import { TIssue, TIssueServiceType } from "@plane/types";
 import { CustomMenu } from "@plane/ui";
 // hooks
 import { useEventTracker, useIssueDetail } from "@/hooks/store";
@@ -11,10 +12,11 @@ type Props = {
   issueId: string;
   customButton?: React.ReactNode;
   disabled?: boolean;
+  issueServiceType?: TIssueServiceType;
 };
 
 export const SubIssuesActionButton: FC<Props> = observer((props) => {
-  const { issueId, customButton, disabled = false } = props;
+  const { issueId, customButton, disabled = false, issueServiceType = EIssueServiceType.ISSUES } = props;
   // store hooks
   const {
     issue: { getIssueById },
@@ -22,7 +24,7 @@ export const SubIssuesActionButton: FC<Props> = observer((props) => {
     toggleSubIssuesModal,
     setIssueCrudOperationState,
     issueCrudOperationState,
-  } = useIssueDetail();
+  } = useIssueDetail(issueServiceType);
   const { setTrackElement } = useEventTracker();
 
   // derived values

web/core/components/issues/issue-detail-widgets/sub-issues/root.tsx

@@ -1,6 +1,8 @@
 "use client";
 import React, { FC } from "react";
 import { observer } from "mobx-react";
+import { EIssueServiceType } from "@plane/constants";
+import { TIssueServiceType } from "@plane/types";
 import { Collapsible } from "@plane/ui";
 // components
 import { SubIssuesCollapsibleContent, SubIssuesCollapsibleTitle } from "@/components/issues/issue-detail-widgets";
@@ -12,13 +14,14 @@ type Props = {
   projectId: string;
   issueId: string;
   disabled?: boolean;
+  issueServiceType?: TIssueServiceType;
 };
 
 export const SubIssuesCollapsible: FC<Props> = observer((props) => {
-  const { workspaceSlug, projectId, issueId, disabled = false } = props;
+  const { workspaceSlug, projectId, issueId, disabled = false, issueServiceType = EIssueServiceType.ISSUES } = props;
 
   // store hooks
-  const { openWidgets, toggleOpenWidget } = useIssueDetail();
+  const { openWidgets, toggleOpenWidget } = useIssueDetail(issueServiceType);
 
   // derived state
   const isCollapsibleOpen = openWidgets.includes("sub-issues");
@@ -27,7 +30,14 @@ export const SubIssuesCollapsible: FC<Props> = observer((props) => {
     <Collapsible
       isOpen={isCollapsibleOpen}
       onToggle={() => toggleOpenWidget("sub-issues")}
-      title={<SubIssuesCollapsibleTitle isOpen={isCollapsibleOpen} parentIssueId={issueId} disabled={disabled} />}
+      title={
+        <SubIssuesCollapsibleTitle
+          isOpen={isCollapsibleOpen}
+          parentIssueId={issueId}
+          disabled={disabled}
+          issueServiceType={issueServiceType}
+        />
+      }
       buttonClassName="w-full"
     >
       <SubIssuesCollapsibleContent
@@ -35,6 +45,7 @@ export const SubIssuesCollapsible: FC<Props> = observer((props) => {
         projectId={projectId}
         parentIssueId={issueId}
         disabled={disabled}
+        issueServiceType={issueServiceType}
       />
     </Collapsible>
   );

web/core/components/issues/issue-detail-widgets/sub-issues/title.tsx

@@ -1,6 +1,8 @@
 "use client";
-import React, { FC, useMemo } from "react";
+import React, { FC } from "react";
 import { observer } from "mobx-react";
+import { EIssueServiceType } from "@plane/constants";
+import { TIssueServiceType } from "@plane/types";
 import { CircularProgressIndicator, CollapsibleButton } from "@plane/ui";
 // components
 import { SubIssuesActionButton } from "@/components/issues/issue-detail-widgets";
@@ -11,14 +13,15 @@ type Props = {
   isOpen: boolean;
   parentIssueId: string;
   disabled: boolean;
+  issueServiceType?: TIssueServiceType;
 };
 
 export const SubIssuesCollapsibleTitle: FC<Props> = observer((props) => {
-  const { isOpen, parentIssueId, disabled } = props;
+  const { isOpen, parentIssueId, disabled, issueServiceType = EIssueServiceType.ISSUES } = props;
   // store hooks
   const {
     subIssues: { subIssuesByIssueId, stateDistributionByIssueId },
-  } = useIssueDetail();
+  } = useIssueDetail(issueServiceType);
 
   // derived data
   const subIssuesDistribution = stateDistributionByIssueId(parentIssueId);
@@ -32,25 +35,23 @@ export const SubIssuesCollapsibleTitle: FC<Props> = observer((props) => {
   const totalCount = subIssues.length;
   const percentage = completedCount && totalCount ? (completedCount / totalCount) * 100 : 0;
 
-  // indicator element
-  const indicatorElement = useMemo(
-    () => (
-      <div className="flex items-center gap-1.5 text-custom-text-300 text-sm">
-        <CircularProgressIndicator size={18} percentage={percentage} strokeWidth={3} />
-        <span>
-          {completedCount}/{totalCount} Done
-        </span>
-      </div>
-    ),
-    [completedCount, totalCount, percentage]
-  );
-
   return (
     <CollapsibleButton
       isOpen={isOpen}
       title="Sub-issues"
-      indicatorElement={indicatorElement}
-      actionItemElement={!disabled && <SubIssuesActionButton issueId={parentIssueId} disabled={disabled} />}
+      indicatorElement={
+        <div className="flex items-center gap-1.5 text-custom-text-300 text-sm">
+          <CircularProgressIndicator size={18} percentage={percentage} strokeWidth={3} />
+          <span>
+            {completedCount}/{totalCount} Done
+          </span>
+        </div>
+      }
+      actionItemElement={
+        !disabled && (
+          <SubIssuesActionButton issueId={parentIssueId} disabled={disabled} issueServiceType={issueServiceType} />
+        )
+      }
     />
   );
 });

web/core/components/issues/issue-detail/label/root.tsx

@@ -2,7 +2,8 @@
 
 import { FC, useMemo } from "react";
 import { observer } from "mobx-react";
-import { IIssueLabel, TIssue } from "@plane/types";
+import { EIssueServiceType } from "@plane/constants";
+import { IIssueLabel, TIssue, TIssueServiceType } from "@plane/types";
 // components
 import { TOAST_TYPE, setToast } from "@plane/ui";
 // hooks
@@ -21,6 +22,7 @@ export type TIssueLabel = {
   disabled: boolean;
   isInboxIssue?: boolean;
   onLabelUpdate?: (labelIds: string[]) => void;
+  issueServiceType?: TIssueServiceType;
 };
 
 export type TLabelOperations = {
@@ -29,13 +31,21 @@ export type TLabelOperations = {
 };
 
 export const IssueLabel: FC<TIssueLabel> = observer((props) => {
-  const { workspaceSlug, projectId, issueId, disabled = false, isInboxIssue = false, onLabelUpdate } = props;
+  const {
+    workspaceSlug,
+    projectId,
+    issueId,
+    disabled = false,
+    isInboxIssue = false,
+    onLabelUpdate,
+    issueServiceType = EIssueServiceType.ISSUES,
+  } = props;
   // hooks
-  const { updateIssue } = useIssueDetail();
+  const { updateIssue } = useIssueDetail(issueServiceType);
   const { createLabel } = useLabel();
   const {
     issue: { getIssueById },
-  } = useIssueDetail();
+  } = useIssueDetail(issueServiceType);
   const { getIssueInboxByIssueId } = useProjectInbox();
   const { allowPermissions } = useUserPermissions();
 

web/core/components/issues/issue-detail/links/create-update-link-modal.tsx

@@ -3,8 +3,9 @@
 import { FC, useEffect } from "react";
 import { observer } from "mobx-react";
 import { Controller, useForm } from "react-hook-form";
+import { EIssueServiceType } from "@plane/constants";
 // plane types
-import type { TIssueLinkEditableFields } from "@plane/types";
+import type { TIssueLinkEditableFields, TIssueServiceType } from "@plane/types";
 // plane ui
 import { Button, Input, ModalCore } from "@plane/ui";
 // hooks
@@ -22,6 +23,7 @@ export type TIssueLinkCreateEditModal = {
   isModalOpen: boolean;
   handleOnClose?: () => void;
   linkOperations: TLinkOperationsModal;
+  issueServiceType?: TIssueServiceType;
 };
 
 const defaultValues: TIssueLinkCreateFormFieldOptions = {
@@ -31,7 +33,7 @@ const defaultValues: TIssueLinkCreateFormFieldOptions = {
 
 export const IssueLinkCreateUpdateModal: FC<TIssueLinkCreateEditModal> = observer((props) => {
   // props
-  const { isModalOpen, handleOnClose, linkOperations } = props;
+  const { isModalOpen, handleOnClose, linkOperations, issueServiceType = EIssueServiceType.ISSUES } = props;
   // react hook form
   const {
     formState: { errors, isSubmitting },
@@ -42,7 +44,7 @@ export const IssueLinkCreateUpdateModal: FC<TIssueLinkCreateEditModal> = observe
     defaultValues,
   });
   // store hooks
-  const { issueLinkData: preloadedData, setIssueLinkData } = useIssueDetail();
+  const { issueLinkData: preloadedData, setIssueLinkData } = useIssueDetail(issueServiceType);
 
   const onClose = () => {
     setIssueLinkData(null);

web/core/components/issues/issue-detail/links/link-item.tsx

@@ -3,6 +3,8 @@
 import { FC } from "react";
 import { observer } from "mobx-react";
 import { Pencil, Trash2, LinkIcon, ExternalLink } from "lucide-react";
+import { EIssueServiceType } from "@plane/constants";
+import { TIssueServiceType } from "@plane/types";
 // ui
 import { Tooltip, TOAST_TYPE, setToast, CustomMenu } from "@plane/ui";
 // helpers
@@ -17,17 +19,18 @@ type TIssueLinkItem = {
   linkId: string;
   linkOperations: TLinkOperationsModal;
   isNotAllowed: boolean;
+  issueServiceType?: TIssueServiceType;
 };
 
 export const IssueLinkItem: FC<TIssueLinkItem> = observer((props) => {
   // props
-  const { linkId, linkOperations, isNotAllowed } = props;
+  const { linkId, linkOperations, isNotAllowed, issueServiceType = EIssueServiceType.ISSUES } = props;
   // hooks
   const {
     toggleIssueLinkModal: toggleIssueLinkModalStore,
     setIssueLinkData,
     link: { getLinkById },
-  } = useIssueDetail();
+  } = useIssueDetail(issueServiceType);
   const { isMobile } = usePlatformOS();
   const linkDetail = getLinkById(linkId);
   if (!linkDetail) return <></>;

web/core/components/issues/issue-detail/links/link-list.tsx

@@ -1,5 +1,7 @@
 import { FC } from "react";
 import { observer } from "mobx-react";
+import { EIssueServiceType } from "@plane/constants";
+import { TIssueServiceType } from "@plane/types";
 // computed
 import { useIssueDetail } from "@/hooks/store";
 import { IssueLinkItem } from "./link-item";
@@ -12,15 +14,16 @@ type TLinkList = {
   issueId: string;
   linkOperations: TLinkOperationsModal;
   disabled?: boolean;
+  issueServiceType?: TIssueServiceType;
 };
 
 export const LinkList: FC<TLinkList> = observer((props) => {
   // props
-  const { issueId, linkOperations, disabled = false } = props;
+  const { issueId, linkOperations, disabled = false, issueServiceType = EIssueServiceType.ISSUES } = props;
   // hooks
   const {
     link: { getLinksByIssueId },
-  } = useIssueDetail();
+  } = useIssueDetail(issueServiceType);
 
   const issueLinks = getLinksByIssueId(issueId);
 
@@ -29,7 +32,13 @@ export const LinkList: FC<TLinkList> = observer((props) => {
   return (
     <div className="flex flex-col gap-2 py-4">
       {issueLinks.map((linkId) => (
-        <IssueLinkItem key={linkId} linkId={linkId} linkOperations={linkOperations} isNotAllowed={disabled} />
+        <IssueLinkItem
+          key={linkId}
+          linkId={linkId}
+          linkOperations={linkOperations}
+          isNotAllowed={disabled}
+          issueServiceType={issueServiceType}
+        />
       ))}
     </div>
   );

web/core/components/issues/issue-detail/main-content.tsx

@@ -55,11 +55,16 @@ export const IssueMainContent: React.FC<Props> = observer((props) => {
   const issue = issueId ? getIssueById(issueId) : undefined;
 
   // debounced duplicate issues swr
-  const { duplicateIssues } = useDebouncedDuplicateIssues(projectDetails?.workspace.toString(), projectDetails?.id, {
-    name: issue?.name,
-    description_html: getTextContent(issue?.description_html),
-    issueId: issue?.id,
-  });
+  const { duplicateIssues } = useDebouncedDuplicateIssues(
+    workspaceSlug,
+    projectDetails?.workspace.toString(),
+    projectDetails?.id,
+    {
+      name: issue?.name,
+      description_html: getTextContent(issue?.description_html),
+      issueId: issue?.id,
+    }
+  );
 
   useEffect(() => {
     if (isSubmitting === "submitted") {

web/core/components/issues/issue-detail/parent-select.tsx

@@ -88,6 +88,7 @@ export const IssueParentSelect: React.FC<TIssueParentSelect> = observer((props)
         isOpen={isParentIssueModalOpen === issueId}
         handleClose={() => toggleParentIssueModal(null)}
         onChange={(issue: any) => handleParentIssue(issue?.id)}
+        searchEpic
       />
       <button
         type="button"

web/core/components/issues/issue-detail/root.tsx

@@ -9,7 +9,7 @@ import { TIssue } from "@plane/types";
 import { TOAST_TYPE, setPromiseToast, setToast } from "@plane/ui";
 // components
 import { EmptyState } from "@/components/common";
-import { IssuePeekOverview } from "@/components/issues";
+import { IssueDetailsSidebar, IssuePeekOverview } from "@/components/issues";
 // constants
 import { ISSUE_UPDATED, ISSUE_DELETED, ISSUE_ARCHIVED } from "@/constants/event-tracker";
 import { EIssuesStoreType } from "@/constants/issue";
@@ -21,7 +21,6 @@ import { EUserPermissions, EUserPermissionsLevel } from "@/plane-web/constants/u
 import emptyIssue from "@/public/empty-state/issue.svg";
 // local components
 import { IssueMainContent } from "./main-content";
-import { IssueDetailsSidebar } from "./sidebar";
 
 export type TIssueOperations = {
   fetch: (workspaceSlug: string, projectId: string, issueId: string, loader?: boolean) => Promise<void>;

web/core/components/issues/issue-layouts/calendar/base-calendar-root.tsx

@@ -25,18 +25,20 @@ export type CalendarStoreType =
   | EIssuesStoreType.CYCLE
   | EIssuesStoreType.PROJECT_VIEW
   | EIssuesStoreType.TEAM
-  | EIssuesStoreType.TEAM_VIEW;
+  | EIssuesStoreType.TEAM_VIEW
+  | EIssuesStoreType.EPIC;
 
 interface IBaseCalendarRoot {
   QuickActions: FC<IQuickActionProps>;
   addIssuesToView?: (issueIds: string[]) => Promise<any>;
   isCompletedCycle?: boolean;
   viewId?: string | undefined;
+  isEpic?: boolean;
   canEditPropertiesBasedOnProject?: (projectId: string) => boolean;
 }
 
 export const BaseCalendarRoot = observer((props: IBaseCalendarRoot) => {
-  const { QuickActions, addIssuesToView, isCompletedCycle = false, viewId, canEditPropertiesBasedOnProject } = props;
+  const { QuickActions, addIssuesToView, isCompletedCycle = false, viewId, isEpic = false, canEditPropertiesBasedOnProject } = props;
 
   // router
   const { workspaceSlug } = useParams();
@@ -173,6 +175,7 @@ export const BaseCalendarRoot = observer((props: IBaseCalendarRoot) => {
           updateFilters={updateFilters}
           handleDragAndDrop={handleDragAndDrop}
           canEditProperties={canEditProperties}
+          isEpic={isEpic}
         />
       </div>
     </>

web/core/components/issues/issue-layouts/calendar/calendar.tsx

@@ -29,6 +29,7 @@ import { renderFormattedPayloadDate } from "@/helpers/date-time.helper";
 import { useIssues } from "@/hooks/store";
 import useSize from "@/hooks/use-window-size";
 // store
+import { IProjectEpicsFilter } from "@/plane-web/store/issue/epic";
 import { ICycleIssuesFilter } from "@/store/issue/cycle";
 import { ICalendarStore } from "@/store/issue/issue_calendar_view.store";
 import { IModuleIssuesFilter } from "@/store/issue/module";
@@ -39,7 +40,12 @@ import { TRenderQuickActions } from "../list/list-view-types";
 import type { ICalendarWeek } from "./types";
 
 type Props = {
-  issuesFilterStore: IProjectIssuesFilter | IModuleIssuesFilter | ICycleIssuesFilter | IProjectViewIssuesFilter;
+  issuesFilterStore:
+    | IProjectIssuesFilter
+    | IModuleIssuesFilter
+    | ICycleIssuesFilter
+    | IProjectViewIssuesFilter
+    | IProjectEpicsFilter;
   issues: TIssueMap | undefined;
   groupedIssueIds: TGroupedIssues;
   layout: "month" | "week" | undefined;
@@ -64,6 +70,7 @@ type Props = {
     filters: IIssueFilterOptions | IIssueDisplayFilterOptions | IIssueDisplayProperties | TIssueKanbanFilters
   ) => Promise<void>;
   canEditProperties: (projectId: string | undefined) => boolean;
+  isEpic?: boolean;
 };
 
 export const CalendarChart: React.FC<Props> = observer((props) => {
@@ -84,6 +91,7 @@ export const CalendarChart: React.FC<Props> = observer((props) => {
     updateFilters,
     canEditProperties,
     readOnly = false,
+    isEpic = false,
   } = props;
   // states
   const [selectedDate, setSelectedDate] = useState<Date>(new Date());
@@ -167,6 +175,7 @@ export const CalendarChart: React.FC<Props> = observer((props) => {
                         addIssuesToView={addIssuesToView}
                         readOnly={readOnly}
                         canEditProperties={canEditProperties}
+                        isEpic={isEpic}
                       />
                     ))}
                 </div>
@@ -190,6 +199,7 @@ export const CalendarChart: React.FC<Props> = observer((props) => {
                   addIssuesToView={addIssuesToView}
                   readOnly={readOnly}
                   canEditProperties={canEditProperties}
+                  isEpic={isEpic}
                 />
               )}
             </div>
@@ -216,6 +226,7 @@ export const CalendarChart: React.FC<Props> = observer((props) => {
                 canEditProperties={canEditProperties}
                 isDragDisabled
                 isMobileView
+                isEpic={isEpic}
               />
             </div>
           </div>
@@ -243,6 +254,7 @@ export const CalendarChart: React.FC<Props> = observer((props) => {
             canEditProperties={canEditProperties}
             isDragDisabled
             isMobileView
+            isEpic={isEpic}
           />
         </div>
       </div>

web/core/components/issues/issue-layouts/calendar/day-tile.tsx

@@ -18,6 +18,7 @@ import { MONTHS_LIST } from "@/constants/calendar";
 import { cn } from "@/helpers/common.helper";
 import { renderFormattedPayloadDate } from "@/helpers/date-time.helper";
 // types
+import { IProjectEpicsFilter } from "@/plane-web/store/issue/epic";
 import { ICycleIssuesFilter } from "@/store/issue/cycle";
 import { IModuleIssuesFilter } from "@/store/issue/module";
 import { IProjectIssuesFilter } from "@/store/issue/project";
@@ -25,7 +26,12 @@ import { IProjectViewIssuesFilter } from "@/store/issue/project-views";
 import { TRenderQuickActions } from "../list/list-view-types";
 
 type Props = {
-  issuesFilterStore: IProjectIssuesFilter | IModuleIssuesFilter | ICycleIssuesFilter | IProjectViewIssuesFilter;
+  issuesFilterStore:
+    | IProjectIssuesFilter
+    | IModuleIssuesFilter
+    | ICycleIssuesFilter
+    | IProjectViewIssuesFilter
+    | IProjectEpicsFilter;
   date: ICalendarDate;
   issues: TIssueMap | undefined;
   groupedIssueIds: TGroupedIssues;
@@ -47,6 +53,7 @@ type Props = {
   selectedDate: Date;
   setSelectedDate: (date: Date) => void;
   canEditProperties: (projectId: string | undefined) => boolean;
+  isEpic?: boolean;
 };
 
 export const CalendarDayTile: React.FC<Props> = observer((props) => {
@@ -68,6 +75,7 @@ export const CalendarDayTile: React.FC<Props> = observer((props) => {
     handleDragAndDrop,
     setSelectedDate,
     canEditProperties,
+    isEpic = false,
   } = props;
 
   const [isDraggingOver, setIsDraggingOver] = useState(false);
@@ -185,6 +193,7 @@ export const CalendarDayTile: React.FC<Props> = observer((props) => {
               quickAddCallback={quickAddCallback}
               readOnly={readOnly}
               canEditProperties={canEditProperties}
+              isEpic={isEpic}
             />
           </div>
         </div>

web/core/components/issues/issue-layouts/calendar/dropdowns/months-dropdown.tsx

@@ -9,6 +9,7 @@ import { Popover, Transition } from "@headlessui/react";
 import { MONTHS_LIST } from "@/constants/calendar";
 import { getDate } from "@/helpers/date-time.helper";
 import { useCalendarView } from "@/hooks/store";
+import { IProjectEpicsFilter } from "@/plane-web/store/issue/epic";
 import { ICycleIssuesFilter } from "@/store/issue/cycle";
 import { IModuleIssuesFilter } from "@/store/issue/module";
 import { IProjectIssuesFilter } from "@/store/issue/project";
@@ -16,7 +17,12 @@ import { IProjectViewIssuesFilter } from "@/store/issue/project-views";
 // helpers
 
 interface Props {
-  issuesFilterStore: IProjectIssuesFilter | IModuleIssuesFilter | ICycleIssuesFilter | IProjectViewIssuesFilter;
+  issuesFilterStore:
+    | IProjectIssuesFilter
+    | IModuleIssuesFilter
+    | ICycleIssuesFilter
+    | IProjectViewIssuesFilter
+    | IProjectEpicsFilter;
 }
 export const CalendarMonthsDropdown: React.FC<Props> = observer((props: Props) => {
   const { issuesFilterStore } = props;

web/core/components/issues/issue-layouts/calendar/dropdowns/options-dropdown.tsx

@@ -23,13 +23,19 @@ import { CALENDAR_LAYOUTS } from "@/constants/calendar";
 import { EIssueFilterType } from "@/constants/issue";
 import { useCalendarView } from "@/hooks/store";
 import useSize from "@/hooks/use-window-size";
+import { IProjectEpicsFilter } from "@/plane-web/store/issue/epic";
 import { ICycleIssuesFilter } from "@/store/issue/cycle";
 import { IModuleIssuesFilter } from "@/store/issue/module";
 import { IProjectIssuesFilter } from "@/store/issue/project";
 import { IProjectViewIssuesFilter } from "@/store/issue/project-views";
 
 interface ICalendarHeader {
-  issuesFilterStore: IProjectIssuesFilter | IModuleIssuesFilter | ICycleIssuesFilter | IProjectViewIssuesFilter;
+  issuesFilterStore:
+    | IProjectIssuesFilter
+    | IModuleIssuesFilter
+    | ICycleIssuesFilter
+    | IProjectViewIssuesFilter
+    | IProjectEpicsFilter;
   updateFilters?: (
     projectId: string,
     filterType: EIssueFilterType,

web/core/components/issues/issue-layouts/calendar/header.tsx

@@ -13,13 +13,19 @@ import { CalendarMonthsDropdown, CalendarOptionsDropdown } from "@/components/is
 // icons
 import { EIssueFilterType } from "@/constants/issue";
 import { useCalendarView } from "@/hooks/store/use-calendar-view";
+import { IProjectEpicsFilter } from "@/plane-web/store/issue/epic";
 import { ICycleIssuesFilter } from "@/store/issue/cycle";
 import { IModuleIssuesFilter } from "@/store/issue/module";
 import { IProjectIssuesFilter } from "@/store/issue/project";
 import { IProjectViewIssuesFilter } from "@/store/issue/project-views";
 
 interface ICalendarHeader {
-  issuesFilterStore: IProjectIssuesFilter | IModuleIssuesFilter | ICycleIssuesFilter | IProjectViewIssuesFilter;
+  issuesFilterStore:
+    | IProjectIssuesFilter
+    | IModuleIssuesFilter
+    | ICycleIssuesFilter
+    | IProjectViewIssuesFilter
+    | IProjectEpicsFilter;
   updateFilters?: (
     projectId: string,
     filterType: EIssueFilterType,

web/core/components/issues/issue-layouts/calendar/issue-block-root.tsx

@@ -15,11 +15,12 @@ type Props = {
   issueId: string;
   quickActions: TRenderQuickActions;
   isDragDisabled: boolean;
+  isEpic?: boolean;
   canEditProperties: (projectId: string | undefined) => boolean;
 };
 
 export const CalendarIssueBlockRoot: React.FC<Props> = observer((props) => {
-  const { issueId, quickActions, isDragDisabled, canEditProperties } = props;
+  const { issueId, quickActions, isDragDisabled, isEpic = false, canEditProperties } = props;
 
   const issueRef = useRef<HTMLAnchorElement | null>(null);
   const [isDragging, setIsDragging] = useState(false);
@@ -58,5 +59,13 @@ export const CalendarIssueBlockRoot: React.FC<Props> = observer((props) => {
 
   if (!issue) return null;
 
-  return <CalendarIssueBlock isDragging={isDragging} issue={issue} quickActions={quickActions} ref={issueRef} />;
+  return (
+    <CalendarIssueBlock
+      isDragging={isDragging}
+      issue={issue}
+      quickActions={quickActions}
+      ref={issueRef}
+      isEpic={isEpic}
+    />
+  );
 });

web/core/components/issues/issue-layouts/calendar/issue-block.tsx

@@ -28,11 +28,12 @@ type Props = {
   issue: TIssue;
   quickActions: TRenderQuickActions;
   isDragging?: boolean;
+  isEpic?: boolean;
 };
 
 export const CalendarIssueBlock = observer(
   forwardRef<HTMLAnchorElement, Props>((props, ref) => {
-    const { issue, quickActions, isDragging = false } = props;
+    const { issue, quickActions, isDragging = false, isEpic = false } = props;
     // states
     const [isMenuActive, setIsMenuActive] = useState(false);
     // refs
@@ -42,7 +43,7 @@ export const CalendarIssueBlock = observer(
     const { workspaceSlug, projectId } = useParams();
     const { getProjectStates } = useProjectState();
     const { getIsIssuePeeked } = useIssueDetail();
-    const { handleRedirection } = useIssuePeekOverviewRedirection();
+    const { handleRedirection } = useIssuePeekOverviewRedirection(isEpic);
     const { isMobile } = usePlatformOS();
     const storeType = useIssueStoreType() as CalendarStoreType;
     const { issuesFilter } = useIssues(storeType);

web/core/components/issues/issue-layouts/calendar/issue-blocks.tsx

@@ -23,6 +23,7 @@ type Props = {
   readOnly?: boolean;
   isMobileView?: boolean;
   canEditProperties: (projectId: string | undefined) => boolean;
+  isEpic?: boolean;
 };
 
 export const CalendarIssueBlocks: React.FC<Props> = observer((props) => {
@@ -39,6 +40,7 @@ export const CalendarIssueBlocks: React.FC<Props> = observer((props) => {
     readOnly,
     isMobileView = false,
     canEditProperties,
+    isEpic = false,
   } = props;
   const formattedDatePayload = renderFormattedPayloadDate(date);
 
@@ -66,6 +68,7 @@ export const CalendarIssueBlocks: React.FC<Props> = observer((props) => {
             quickActions={quickActions}
             isDragDisabled={isDragDisabled || isMobileView}
             canEditProperties={canEditProperties}
+            isEpic={isEpic}
           />
         </div>
       ))}

web/core/components/issues/issue-layouts/calendar/week-days.tsx

@@ -5,6 +5,7 @@ import { CalendarDayTile } from "@/components/issues";
 // helpers
 import { renderFormattedPayloadDate } from "@/helpers/date-time.helper";
 // types
+import { IProjectEpicsFilter } from "@/plane-web/store/issue/epic";
 import { ICycleIssuesFilter } from "@/store/issue/cycle";
 import { IModuleIssuesFilter } from "@/store/issue/module";
 import { IProjectIssuesFilter } from "@/store/issue/project";
@@ -13,7 +14,12 @@ import { TRenderQuickActions } from "../list/list-view-types";
 import { ICalendarDate, ICalendarWeek } from "./types";
 
 type Props = {
-  issuesFilterStore: IProjectIssuesFilter | IModuleIssuesFilter | ICycleIssuesFilter | IProjectViewIssuesFilter;
+  issuesFilterStore:
+    | IProjectIssuesFilter
+    | IModuleIssuesFilter
+    | ICycleIssuesFilter
+    | IProjectViewIssuesFilter
+    | IProjectEpicsFilter;
   issues: TIssueMap | undefined;
   groupedIssueIds: TGroupedIssues;
   week: ICalendarWeek | undefined;
@@ -35,6 +41,7 @@ type Props = {
   selectedDate: Date;
   setSelectedDate: (date: Date) => void;
   canEditProperties: (projectId: string | undefined) => boolean;
+  isEpic?: boolean;
 };
 
 export const CalendarWeekDays: React.FC<Props> = observer((props) => {
@@ -56,6 +63,7 @@ export const CalendarWeekDays: React.FC<Props> = observer((props) => {
     selectedDate,
     setSelectedDate,
     canEditProperties,
+    isEpic = false,
   } = props;
 
   const calendarLayout = issuesFilterStore?.issueFilters?.displayFilters?.calendar?.layout ?? "month";
@@ -92,6 +100,7 @@ export const CalendarWeekDays: React.FC<Props> = observer((props) => {
             readOnly={readOnly}
             handleDragAndDrop={handleDragAndDrop}
             canEditProperties={canEditProperties}
+            isEpic={isEpic}
           />
         );
       })}

web/core/components/issues/issue-layouts/empty-states/index.tsx

@@ -6,6 +6,7 @@ import { ProjectDraftEmptyState } from "./draft-issues";
 import { GlobalViewEmptyState } from "./global-view";
 import { ModuleEmptyState } from "./module";
 import { ProfileViewEmptyState } from "./profile-view";
+import { ProjectEpicsEmptyState } from "./project-epic";
 import { ProjectEmptyState } from "./project-issues";
 import { ProjectViewEmptyState } from "./project-view";
 
@@ -31,6 +32,8 @@ export const IssueLayoutEmptyState = (props: Props) => {
       return <GlobalViewEmptyState />;
     case EIssuesStoreType.PROFILE:
       return <ProfileViewEmptyState />;
+    case EIssuesStoreType.EPIC:
+      return <ProjectEpicsEmptyState />;
     default:
       return null;
   }

web/core/components/issues/issue-layouts/empty-states/project-epic.tsx

@@ -0,0 +1,12 @@
+// types
+// components
+import { EmptyState } from "@/components/empty-state";
+// constants
+import { EmptyStateType } from "@/constants/empty-state";
+// hooks
+
+export const ProjectEpicsEmptyState: React.FC = () => (
+  <div className="relative h-full w-full overflow-y-auto">
+    <EmptyState type={EmptyStateType.PROJECT_NO_EPICS} primaryButtonOnClick={() => {}} />
+  </div>
+);

web/core/components/issues/issue-layouts/filters/applied-filters/roots/project-root.tsx

@@ -1,29 +1,32 @@
 import { observer } from "mobx-react";
 import { useParams } from "next/navigation";
+// types
 import { IIssueFilterOptions } from "@plane/types";
-// hooks
-// components
+// ui
 import { Header, EHeaderVariant } from "@plane/ui";
+// components
 import { AppliedFiltersList, SaveFilterView } from "@/components/issues";
 // constants
 import { EIssueFilterType, EIssuesStoreType } from "@/constants/issue";
+// hooks
 import { useLabel, useProjectState, useUserPermissions } from "@/hooks/store";
 import { useIssues } from "@/hooks/store/use-issues";
+// plane web constants
 import { EUserPermissions, EUserPermissionsLevel } from "@/plane-web/constants/user-permissions";
 
-// types
+type TProjectAppliedFiltersRootProps = {
+  storeType?: EIssuesStoreType.PROJECT | EIssuesStoreType.EPIC;
+};
 
-export const ProjectAppliedFiltersRoot: React.FC = observer(() => {
+export const ProjectAppliedFiltersRoot: React.FC<TProjectAppliedFiltersRootProps> = observer((props) => {
+  const { storeType = EIssuesStoreType.PROJECT } = props;
   // router
-  const { workspaceSlug, projectId } = useParams() as {
-    workspaceSlug: string;
-    projectId: string;
-  };
+  const { workspaceSlug, projectId } = useParams();
   // store hooks
   const { projectLabels } = useLabel();
   const {
     issuesFilter: { issueFilters, updateFilters },
-  } = useIssues(EIssuesStoreType.PROJECT);
+  } = useIssues(storeType);
   const { allowPermissions } = useUserPermissions();
 
   const { projectStates } = useProjectState();
@@ -84,8 +87,8 @@ export const ProjectAppliedFiltersRoot: React.FC = observer(() => {
       <Header.RightItem>
         {isEditingAllowed && (
           <SaveFilterView
-            workspaceSlug={workspaceSlug}
-            projectId={projectId}
+            workspaceSlug={workspaceSlug?.toString()}
+            projectId={projectId?.toString()}
             filterParams={{
               filters: appliedFilters,
               display_filters: issueFilters?.displayFilters,

web/core/components/issues/issue-layouts/gantt/base-gantt-root.tsx

@@ -27,16 +27,18 @@ import { IssueLayoutHOC } from "../issue-layout-HOC";
 interface IBaseGanttRoot {
   viewId?: string | undefined;
   isCompletedCycle?: boolean;
+  isEpic?: boolean;
 }
 
 export type GanttStoreType =
   | EIssuesStoreType.PROJECT
   | EIssuesStoreType.MODULE
   | EIssuesStoreType.CYCLE
-  | EIssuesStoreType.PROJECT_VIEW;
+  | EIssuesStoreType.PROJECT_VIEW
+  | EIssuesStoreType.EPIC;
 
 export const BaseGanttRoot: React.FC<IBaseGanttRoot> = observer((props: IBaseGanttRoot) => {
-  const { viewId, isCompletedCycle = false } = props;
+  const { viewId, isCompletedCycle = false, isEpic = false } = props;
   // router
   const { workspaceSlug, projectId } = useParams();
 
@@ -123,8 +125,8 @@ export const BaseGanttRoot: React.FC<IBaseGanttRoot> = observer((props: IBaseGan
             loaderTitle="Issues"
             blockIds={issuesIds}
             blockUpdateHandler={updateIssueBlockStructure}
-            blockToRender={(data: TIssue) => <IssueGanttBlock issueId={data.id} />}
-            sidebarToRender={(props) => <IssueGanttSidebar {...props} showAllBlocks />}
+            blockToRender={(data: TIssue) => <IssueGanttBlock issueId={data.id} isEpic={isEpic} />}
+            sidebarToRender={(props) => <IssueGanttSidebar {...props} showAllBlocks isEpic={isEpic} />}
             enableBlockLeftResize={isAllowed}
             enableBlockRightResize={isAllowed}
             enableBlockMove={isAllowed}
@@ -136,6 +138,7 @@ export const BaseGanttRoot: React.FC<IBaseGanttRoot> = observer((props: IBaseGan
             canLoadMoreBlocks={nextPageResults}
             updateBlockDates={updateBlockDates}
             showAllBlocks
+            isEpic={isEpic}
           />
         </div>
       </TimeLineTypeContext.Provider>

web/core/components/issues/issue-layouts/gantt/blocks.tsx

@@ -21,10 +21,11 @@ import { GanttStoreType } from "./base-gantt-root";
 
 type Props = {
   issueId: string;
+  isEpic?: boolean;
 };
 
 export const IssueGanttBlock: React.FC<Props> = observer((props) => {
-  const { issueId } = props;
+  const { issueId, isEpic } = props;
   // router
   const { workspaceSlug: routerWorkspaceSlug } = useParams();
   const workspaceSlug = routerWorkspaceSlug?.toString();
@@ -35,7 +36,7 @@ export const IssueGanttBlock: React.FC<Props> = observer((props) => {
   } = useIssueDetail();
   // hooks
   const { isMobile } = usePlatformOS();
-  const { handleRedirection } = useIssuePeekOverviewRedirection();
+  const { handleRedirection } = useIssuePeekOverviewRedirection(isEpic);
 
   // derived values
   const issueDetails = getIssueById(issueId);
@@ -78,7 +79,7 @@ export const IssueGanttBlock: React.FC<Props> = observer((props) => {
 
 // rendering issues on gantt sidebar
 export const IssueGanttSidebarBlock: React.FC<Props> = observer((props) => {
-  const { issueId } = props;
+  const { issueId, isEpic = false } = props;
   // router
   const { workspaceSlug: routerWorkspaceSlug } = useParams();
   const workspaceSlug = routerWorkspaceSlug?.toString();
@@ -91,7 +92,7 @@ export const IssueGanttSidebarBlock: React.FC<Props> = observer((props) => {
   const { issuesFilter } = useIssues(storeType);
 
   // handlers
-  const { handleRedirection } = useIssuePeekOverviewRedirection();
+  const { handleRedirection } = useIssuePeekOverviewRedirection(isEpic);
 
   // derived values
   const issueDetails = getIssueById(issueId);
@@ -105,7 +106,7 @@ export const IssueGanttSidebarBlock: React.FC<Props> = observer((props) => {
   return (
     <ControlLink
       id={`issue-${issueId}`}
-      href={`/${workspaceSlug}/projects/${issueDetails?.project_id}/issues/${issueDetails?.id}`}
+      href={`/${workspaceSlug}/projects/${issueDetails?.project_id}/${isEpic ? "epics" : "issues"}/${issueDetails?.id}`}
       onClick={handleIssuePeekOverview}
       className="line-clamp-1 w-full cursor-pointer text-sm text-custom-text-100"
       disabled={!!issueDetails?.tempId}

web/core/components/issues/issue-layouts/kanban/base-kanban-root.tsx

@@ -6,6 +6,7 @@ import { dropTargetForElements } from "@atlaskit/pragmatic-drag-and-drop/element
 import { autoScrollForElements } from "@atlaskit/pragmatic-drag-and-drop-auto-scroll/element";
 import { observer } from "mobx-react";
 import { useParams, usePathname } from "next/navigation";
+import { EIssueServiceType } from "@plane/constants";
 import { DeleteIssueModal } from "@/components/issues";
 //constants
 import { ISSUE_DELETED } from "@/constants/event-tracker";
@@ -34,7 +35,8 @@ export type KanbanStoreType =
   | EIssuesStoreType.DRAFT
   | EIssuesStoreType.PROFILE
   | EIssuesStoreType.TEAM
-  | EIssuesStoreType.TEAM_VIEW;
+  | EIssuesStoreType.TEAM_VIEW
+  | EIssuesStoreType.EPIC;
 
 export interface IBaseKanBanLayout {
   QuickActions: FC<IQuickActionProps>;
@@ -42,10 +44,18 @@ export interface IBaseKanBanLayout {
   canEditPropertiesBasedOnProject?: (projectId: string) => boolean;
   isCompletedCycle?: boolean;
   viewId?: string | undefined;
+  isEpic?: boolean;
 }
 
 export const BaseKanBanRoot: React.FC<IBaseKanBanLayout> = observer((props: IBaseKanBanLayout) => {
-  const { QuickActions, addIssuesToView, canEditPropertiesBasedOnProject, isCompletedCycle = false, viewId } = props;
+  const {
+    QuickActions,
+    addIssuesToView,
+    canEditPropertiesBasedOnProject,
+    isCompletedCycle = false,
+    viewId,
+    isEpic = false,
+  } = props;
   // router
   const { workspaceSlug, projectId } = useParams();
   const pathname = usePathname();
@@ -56,7 +66,7 @@ export const BaseKanBanRoot: React.FC<IBaseKanBanLayout> = observer((props: IBas
   const { issueMap, issuesFilter, issues } = useIssues(storeType);
   const {
     issue: { getIssueById },
-  } = useIssueDetail();
+  } = useIssueDetail(isEpic ? EIssueServiceType.EPICS : EIssueServiceType.ISSUES);
   const {
     fetchIssues,
     fetchNextIssues,
@@ -275,6 +285,7 @@ export const BaseKanBanRoot: React.FC<IBaseKanBanLayout> = observer((props: IBas
               scrollableContainerRef={scrollableContainerRef}
               handleOnDrop={handleOnDrop}
               loadMoreIssues={fetchMoreIssues}
+              isEpic={isEpic}
             />
           </div>
         </div>

web/core/components/issues/issue-layouts/kanban/block.tsx

@@ -26,6 +26,7 @@ import { IssueIdentifier } from "@/plane-web/components/issues";
 import { TRenderQuickActions } from "../list/list-view-types";
 import { IssueProperties } from "../properties/all-properties";
 import { getIssueBlockId } from "../utils";
+import { EIssueServiceType } from "@plane/constants";
 
 interface IssueBlockProps {
   issueId: string;
@@ -41,6 +42,7 @@ interface IssueBlockProps {
   canEditProperties: (projectId: string | undefined) => boolean;
   scrollableContainerRef?: MutableRefObject<HTMLDivElement | null>;
   shouldRenderByDefault?: boolean;
+  isEpic?: boolean;
 }
 
 interface IssueDetailsBlockProps {
@@ -50,10 +52,11 @@ interface IssueDetailsBlockProps {
   updateIssue: ((projectId: string | null, issueId: string, data: Partial<TIssue>) => Promise<void>) | undefined;
   quickActions: TRenderQuickActions;
   isReadOnly: boolean;
+  isEpic?: boolean;
 }
 
 const KanbanIssueDetailsBlock: React.FC<IssueDetailsBlockProps> = observer((props) => {
-  const { cardRef, issue, updateIssue, quickActions, isReadOnly, displayProperties } = props;
+  const { cardRef, issue, updateIssue, quickActions, isReadOnly, displayProperties, isEpic = false } = props;
   // hooks
   const { isMobile } = usePlatformOS();
 
@@ -99,6 +102,7 @@ const KanbanIssueDetailsBlock: React.FC<IssueDetailsBlockProps> = observer((prop
         activeLayout="Kanban"
         updateIssue={updateIssue}
         isReadOnly={isReadOnly}
+        isEpic={isEpic}
       />
     </>
   );
@@ -118,6 +122,7 @@ export const KanbanIssueBlock: React.FC<IssueBlockProps> = observer((props) => {
     canEditProperties,
     scrollableContainerRef,
     shouldRenderByDefault,
+    isEpic = false,
   } = props;
 
   const cardRef = useRef<HTMLAnchorElement | null>(null);
@@ -125,8 +130,8 @@ export const KanbanIssueBlock: React.FC<IssueBlockProps> = observer((props) => {
   const { workspaceSlug: routerWorkspaceSlug } = useParams();
   const workspaceSlug = routerWorkspaceSlug?.toString();
   // hooks
-  const { getIsIssuePeeked } = useIssueDetail();
-  const { handleRedirection } = useIssuePeekOverviewRedirection();
+  const { getIsIssuePeeked } = useIssueDetail(isEpic ? EIssueServiceType.EPICS : EIssueServiceType.ISSUES);
+  const { handleRedirection } = useIssuePeekOverviewRedirection(isEpic);
   const { isMobile } = usePlatformOS();
 
   // handlers
@@ -210,7 +215,7 @@ export const KanbanIssueBlock: React.FC<IssueBlockProps> = observer((props) => {
       >
         <ControlLink
           id={getIssueBlockId(issueId, groupId, subGroupId)}
-          href={`/${workspaceSlug}/projects/${issue.project_id}/${issue.archived_at ? "archives/" : ""}issues/${
+          href={`/${workspaceSlug}/projects/${issue.project_id}/${issue.archived_at ? "archives/" : ""}${isEpic ? "epics" : "issues"}/${
             issue.id
           }`}
           ref={cardRef}
@@ -238,6 +243,7 @@ export const KanbanIssueBlock: React.FC<IssueBlockProps> = observer((props) => {
               updateIssue={updateIssue}
               quickActions={quickActions}
               isReadOnly={!canEditIssueProperties}
+              isEpic={isEpic}
             />
           </RenderIfVisible>
         </ControlLink>

web/core/components/issues/issue-layouts/kanban/blocks-list.tsx

@@ -18,6 +18,7 @@ interface IssueBlocksListProps {
   canDropOverIssue: boolean;
   canDragIssuesInCurrentGrouping: boolean;
   scrollableContainerRef?: MutableRefObject<HTMLDivElement | null>;
+  isEpic?: boolean;
 }
 
 export const KanbanIssueBlocksList: React.FC<IssueBlocksListProps> = observer((props) => {
@@ -33,6 +34,7 @@ export const KanbanIssueBlocksList: React.FC<IssueBlocksListProps> = observer((p
     quickActions,
     canEditProperties,
     scrollableContainerRef,
+    isEpic = false,
   } = props;
 
   return (
@@ -62,6 +64,7 @@ export const KanbanIssueBlocksList: React.FC<IssueBlocksListProps> = observer((p
                 canDragIssuesInCurrentGrouping={canDragIssuesInCurrentGrouping}
                 canEditProperties={canEditProperties}
                 scrollableContainerRef={scrollableContainerRef}
+                isEpic={isEpic}
               />
             );
           })}

web/core/components/issues/issue-layouts/kanban/default.tsx

@@ -58,6 +58,7 @@ export interface IKanBan {
   handleOnDrop: (source: GroupDropLocation, destination: GroupDropLocation) => Promise<void>;
   showEmptyGroup?: boolean;
   subGroupIndex?: number;
+  isEpic?: boolean;
 }
 
 export const KanBan: React.FC<IKanBan> = observer((props) => {
@@ -86,6 +87,7 @@ export const KanBan: React.FC<IKanBan> = observer((props) => {
     isDropDisabled,
     dropErrorMessage,
     subGroupIndex = 0,
+    isEpic = false,
   } = props;
   // store hooks
   const storeType = useIssueStoreType();
@@ -164,6 +166,7 @@ export const KanBan: React.FC<IKanBan> = observer((props) => {
                     addIssuesToView={addIssuesToView}
                     collapsedGroups={collapsedGroups}
                     handleCollapsedGroups={handleCollapsedGroups}
+                    isEpic={isEpic}
                   />
                 </div>
               )}
@@ -207,6 +210,7 @@ export const KanBan: React.FC<IKanBan> = observer((props) => {
                     scrollableContainerRef={scrollableContainerRef}
                     loadMoreIssues={loadMoreIssues}
                     handleOnDrop={handleOnDrop}
+                    isEpic={isEpic}
                   />
                 </RenderIfVisible>
               )}

web/core/components/issues/issue-layouts/kanban/headers/group-by-card.tsx

@@ -15,6 +15,8 @@ import { CreateUpdateIssueModal } from "@/components/issues";
 // hooks
 import { useEventTracker } from "@/hooks/store";
 import { useIssueStoreType } from "@/hooks/use-issue-layout-store";
+import { CreateUpdateEpicModal } from "@/plane-web/components/epics/epic-modal";
+// types
 // Plane-web
 import { WorkFlowGroupTree } from "@/plane-web/components/workflow";
 
@@ -30,6 +32,7 @@ interface IHeaderGroupByCard {
   issuePayload: Partial<TIssue>;
   disableIssueCreation?: boolean;
   addIssuesToView?: (issueIds: string[]) => Promise<TIssue>;
+  isEpic?: boolean;
 }
 
 export const HeaderGroupByCard: FC<IHeaderGroupByCard> = observer((props) => {
@@ -45,6 +48,7 @@ export const HeaderGroupByCard: FC<IHeaderGroupByCard> = observer((props) => {
     issuePayload,
     disableIssueCreation,
     addIssuesToView,
+    isEpic = false,
   } = props;
   const verticalAlignPosition = sub_group_by ? false : collapsedGroups?.group_by.includes(column_id);
   // states
@@ -86,13 +90,17 @@ export const HeaderGroupByCard: FC<IHeaderGroupByCard> = observer((props) => {
 
   return (
     <>
-      <CreateUpdateIssueModal
-        isOpen={isOpen}
-        onClose={() => setIsOpen(false)}
-        data={issuePayload}
-        storeType={storeType}
-        isDraft={isDraftIssue}
-      />
+      {isEpic ? (
+        <CreateUpdateEpicModal isOpen={isOpen} onClose={() => setIsOpen(false)} data={issuePayload} />
+      ) : (
+        <CreateUpdateIssueModal
+          isOpen={isOpen}
+          onClose={() => setIsOpen(false)}
+          data={issuePayload}
+          storeType={storeType}
+          isDraft={isDraftIssue}
+        />
+      )}
 
       {renderExistingIssueModal && (
         <ExistingIssuesListModal

web/core/components/issues/issue-layouts/kanban/kanban-group.tsx

@@ -56,6 +56,7 @@ interface IKanbanGroup {
   scrollableContainerRef?: MutableRefObject<HTMLDivElement | null>;
   handleOnDrop: (source: GroupDropLocation, destination: GroupDropLocation) => Promise<void>;
   orderBy: TIssueOrderByOptions | undefined;
+  isEpic?: boolean;
 }
 
 export const KanbanGroup = observer((props: IKanbanGroup) => {
@@ -79,6 +80,7 @@ export const KanbanGroup = observer((props: IKanbanGroup) => {
     quickAddCallback,
     scrollableContainerRef,
     handleOnDrop,
+    isEpic =false
   } = props;
   // hooks
   const projectState = useProjectState();
@@ -294,6 +296,7 @@ export const KanbanGroup = observer((props: IKanbanGroup) => {
         scrollableContainerRef={scrollableContainerRef}
         canDropOverIssue={!canOverlayBeVisible}
         canDragIssuesInCurrentGrouping={canDragIssuesInCurrentGrouping}
+        isEpic={isEpic}
       />
 
       {shouldLoadMore && (isSubGroup ? <>{loadMore}</> : <KanbanIssueBlockLoader ref={setIntersectionElement} />)}

web/core/components/issues/issue-layouts/list/base-list-root.tsx

@@ -28,7 +28,8 @@ type ListStoreType =
   | EIssuesStoreType.ARCHIVED
   | EIssuesStoreType.WORKSPACE_DRAFT
   | EIssuesStoreType.TEAM
-  | EIssuesStoreType.TEAM_VIEW;
+  | EIssuesStoreType.TEAM_VIEW
+  | EIssuesStoreType.EPIC;
 
 interface IBaseListRoot {
   QuickActions: FC<IQuickActionProps>;
@@ -36,9 +37,17 @@ interface IBaseListRoot {
   canEditPropertiesBasedOnProject?: (projectId: string) => boolean;
   viewId?: string | undefined;
   isCompletedCycle?: boolean;
+  isEpic?: boolean;
 }
 export const BaseListRoot = observer((props: IBaseListRoot) => {
-  const { QuickActions, viewId, addIssuesToView, canEditPropertiesBasedOnProject, isCompletedCycle = false } = props;
+  const {
+    QuickActions,
+    viewId,
+    addIssuesToView,
+    canEditPropertiesBasedOnProject,
+    isCompletedCycle = false,
+    isEpic = false,
+  } = props;
   // router
   const storeType = useIssueStoreType() as ListStoreType;
   //stores
@@ -157,6 +166,7 @@ export const BaseListRoot = observer((props: IBaseListRoot) => {
           handleOnDrop={handleOnDrop}
           handleCollapsedGroups={handleCollapsedGroups}
           collapsedGroups={collapsedGroups}
+          isEpic={isEpic}
         />
       </div>
     </IssueLayoutHOC>

web/core/components/issues/issue-layouts/list/block-root.tsx

@@ -5,6 +5,7 @@ import { combine } from "@atlaskit/pragmatic-drag-and-drop/combine";
 import { dropTargetForElements } from "@atlaskit/pragmatic-drag-and-drop/element/adapter";
 import { attachInstruction, extractInstruction } from "@atlaskit/pragmatic-drag-and-drop-hitbox/tree-item";
 import { observer } from "mobx-react";
+import { EIssueServiceType } from "@plane/constants";
 // plane helpers
 import { useOutsideClickDetector } from "@plane/hooks";
 // types
@@ -39,6 +40,7 @@ type Props = {
   isParentIssueBeingDragged?: boolean;
   isLastChild?: boolean;
   shouldRenderByDefault?: boolean;
+  isEpic?: boolean;
 };
 
 export const IssueBlockRoot: FC<Props> = observer((props) => {
@@ -59,6 +61,7 @@ export const IssueBlockRoot: FC<Props> = observer((props) => {
     isLastChild = false,
     selectionHelpers,
     shouldRenderByDefault,
+    isEpic = false,
   } = props;
   // states
   const [isExpanded, setExpanded] = useState<boolean>(false);
@@ -69,7 +72,7 @@ export const IssueBlockRoot: FC<Props> = observer((props) => {
   // hooks
   const { isMobile } = usePlatformOS();
   // store hooks
-  const { subIssues: subIssuesStore } = useIssueDetail();
+  const { subIssues: subIssuesStore } = useIssueDetail(isEpic ? EIssueServiceType.EPICS : EIssueServiceType.ISSUES);
 
   const isSubIssue = nestingLevel !== 0;
 
@@ -150,10 +153,12 @@ export const IssueBlockRoot: FC<Props> = observer((props) => {
           canDrag={!isSubIssue && isDragAllowed}
           isCurrentBlockDragging={isParentIssueBeingDragged || isCurrentBlockDragging}
           setIsCurrentBlockDragging={setIsCurrentBlockDragging}
+          isEpic={isEpic}
         />
       </RenderIfVisible>
 
       {isExpanded &&
+        !isEpic &&
         subIssues?.map((subIssueId) => (
           <IssueBlockRoot
             key={`${subIssueId}`}

web/core/components/issues/issue-layouts/list/block.tsx

@@ -6,6 +6,7 @@ import { draggable } from "@atlaskit/pragmatic-drag-and-drop/element/adapter";
 import { observer } from "mobx-react";
 import { useParams } from "next/navigation";
 import { ChevronRight } from "lucide-react";
+import { EIssueServiceType } from "@plane/constants";
 // types
 import { TIssue, IIssueDisplayProperties, TIssueMap } from "@plane/types";
 // ui
@@ -40,6 +41,7 @@ interface IssueBlockProps {
   isCurrentBlockDragging: boolean;
   setIsCurrentBlockDragging: React.Dispatch<React.SetStateAction<boolean>>;
   canDrag: boolean;
+  isEpic?: boolean;
 }
 
 export const IssueBlock = observer((props: IssueBlockProps) => {
@@ -59,6 +61,7 @@ export const IssueBlock = observer((props: IssueBlockProps) => {
     isCurrentBlockDragging,
     setIsCurrentBlockDragging,
     canDrag,
+    isEpic = false,
   } = props;
   // ref
   const issueRef = useRef<HTMLDivElement | null>(null);
@@ -69,7 +72,12 @@ export const IssueBlock = observer((props: IssueBlockProps) => {
   // hooks
   const { sidebarCollapsed: isSidebarCollapsed } = useAppTheme();
   const { getProjectIdentifierById } = useProject();
-  const { getIsIssuePeeked, peekIssue, setPeekIssue, subIssues: subIssuesStore } = useIssueDetail();
+  const {
+    getIsIssuePeeked,
+    peekIssue,
+    setPeekIssue,
+    subIssues: subIssuesStore,
+  } = useIssueDetail(isEpic ? EIssueServiceType.EPICS : EIssueServiceType.ISSUES);
 
   const handleIssuePeekOverview = (issue: TIssue) =>
     workspaceSlug &&
@@ -143,7 +151,7 @@ export const IssueBlock = observer((props: IssueBlockProps) => {
   return (
     <ControlLink
       id={`issue-${issue.id}`}
-      href={`/${workspaceSlug}/projects/${issue.project_id}/${issue.archived_at ? "archives/" : ""}issues/${issue.id}`}
+      href={`/${workspaceSlug}/projects/${issue.project_id}/${issue.archived_at ? "archives/" : ""}${isEpic ? "epics" : "issues"}/${issue.id}`}
       onClick={() => handleIssuePeekOverview(issue)}
       className="w-full cursor-pointer"
       disabled={!!issue?.tempId || issue?.is_draft}
@@ -178,7 +186,7 @@ export const IssueBlock = observer((props: IssueBlockProps) => {
           <div className="flex flex-grow items-center gap-0.5 truncate">
             <div className="flex items-center gap-1" style={isSubIssue ? { marginLeft } : {}}>
               {/* select checkbox */}
-              {projectId && canSelectIssues && (
+              {projectId && canSelectIssues && !isEpic && (
                 <Tooltip
                   tooltipContent={
                     <>
@@ -220,7 +228,7 @@ export const IssueBlock = observer((props: IssueBlockProps) => {
 
               {/* sub-issues chevron */}
               <div className="size-4 grid place-items-center flex-shrink-0">
-                {subIssuesCount > 0 && (
+                {subIssuesCount > 0 && !isEpic && (
                   <button
                     type="button"
                     className="size-4 grid place-items-center rounded-sm text-custom-text-400 hover:text-custom-text-300"
@@ -275,6 +283,7 @@ export const IssueBlock = observer((props: IssueBlockProps) => {
                 updateIssue={updateIssue}
                 displayProperties={displayProperties}
                 activeLayout="List"
+                isEpic={isEpic}
               />
               <div
                 className={cn("hidden", {

web/core/components/issues/issue-layouts/list/blocks-list.tsx

@@ -19,6 +19,7 @@ interface Props {
   isDragAllowed: boolean;
   canDropOverIssue: boolean;
   selectionHelpers: TSelectionHelper;
+  isEpic?: boolean;
 }
 
 export const IssueBlocksList: FC<Props> = (props) => {
@@ -34,6 +35,7 @@ export const IssueBlocksList: FC<Props> = (props) => {
     selectionHelpers,
     isDragAllowed,
     canDropOverIssue,
+    isEpic = false,
   } = props;
 
   return (
@@ -57,6 +59,7 @@ export const IssueBlocksList: FC<Props> = (props) => {
             isLastChild={index === issueIds.length - 1}
             isDragAllowed={isDragAllowed}
             canDropOverIssue={canDropOverIssue}
+            isEpic={isEpic}
           />
         ))}
     </div>

web/core/components/issues/issue-layouts/list/default.tsx

@@ -48,6 +48,7 @@ export interface IList {
   loadMoreIssues: (groupId?: string) => void;
   handleCollapsedGroups: (value: string) => void;
   collapsedGroups: TIssueKanbanFilters;
+  isEpic?: boolean;
 }
 
 export const List: React.FC<IList> = observer((props) => {
@@ -70,6 +71,7 @@ export const List: React.FC<IList> = observer((props) => {
     loadMoreIssues,
     handleCollapsedGroups,
     collapsedGroups,
+    isEpic = false,
   } = props;
 
   const storeType = useIssueStoreType();
@@ -121,7 +123,11 @@ export const List: React.FC<IList> = observer((props) => {
   return (
     <div className="relative size-full flex flex-col">
       {groups && (
-        <MultipleSelectGroup containerRef={containerRef} entities={entities} disabled={!isBulkOperationsEnabled}>
+        <MultipleSelectGroup
+          containerRef={containerRef}
+          entities={entities}
+          disabled={!isBulkOperationsEnabled || isEpic}
+        >
           {(helpers) => (
             <>
               <div
@@ -153,6 +159,7 @@ export const List: React.FC<IList> = observer((props) => {
                     selectionHelpers={helpers}
                     handleCollapsedGroups={handleCollapsedGroups}
                     collapsedGroups={collapsedGroups}
+                    isEpic={isEpic}
                   />
                 ))}
               </div>

web/core/components/issues/issue-layouts/list/headers/group-by-card.tsx

@@ -18,6 +18,8 @@ import { cn } from "@/helpers/common.helper";
 import { useEventTracker } from "@/hooks/store";
 import { useIssueStoreType } from "@/hooks/use-issue-layout-store";
 import { TSelectionHelper } from "@/hooks/use-multiple-select";
+// plane-web
+import { CreateUpdateEpicModal } from "@/plane-web/components/epics/epic-modal";
 // Plane-web
 import { WorkFlowGroupTree } from "@/plane-web/components/workflow";
 
@@ -33,6 +35,7 @@ interface IHeaderGroupByCard {
   addIssuesToView?: (issueIds: string[]) => Promise<TIssue>;
   selectionHelpers: TSelectionHelper;
   handleCollapsedGroups: (value: string) => void;
+  isEpic?: boolean;
 }
 
 export const HeaderGroupByCard = observer((props: IHeaderGroupByCard) => {
@@ -48,6 +51,7 @@ export const HeaderGroupByCard = observer((props: IHeaderGroupByCard) => {
     addIssuesToView,
     selectionHelpers,
     handleCollapsedGroups,
+    isEpic = false,
   } = props;
   // states
   const [isOpen, setIsOpen] = useState(false);
@@ -157,13 +161,17 @@ export const HeaderGroupByCard = observer((props: IHeaderGroupByCard) => {
             </div>
           ))}
 
-        <CreateUpdateIssueModal
-          isOpen={isOpen}
-          onClose={() => setIsOpen(false)}
-          data={issuePayload}
-          storeType={storeType}
-          isDraft={isDraftIssue}
-        />
+        {isEpic ? (
+          <CreateUpdateEpicModal isOpen={isOpen} onClose={() => setIsOpen(false)} data={issuePayload} />
+        ) : (
+          <CreateUpdateIssueModal
+            isOpen={isOpen}
+            onClose={() => setIsOpen(false)}
+            data={issuePayload}
+            storeType={storeType}
+            isDraft={isDraftIssue}
+          />
+        )}
 
         {renderExistingIssueModal && (
           <ExistingIssuesListModal

web/core/components/issues/issue-layouts/list/list-group.tsx

@@ -64,6 +64,7 @@ interface Props {
   selectionHelpers: TSelectionHelper;
   handleCollapsedGroups: (value: string) => void;
   collapsedGroups: TIssueKanbanFilters;
+  isEpic?: boolean;
 }
 
 export const ListGroup = observer((props: Props) => {
@@ -90,6 +91,7 @@ export const ListGroup = observer((props: Props) => {
     selectionHelpers,
     handleCollapsedGroups,
     collapsedGroups,
+    isEpic = false,
   } = props;
 
   const [isDraggingOverColumn, setIsDraggingOverColumn] = useState(false);
@@ -266,6 +268,7 @@ export const ListGroup = observer((props: Props) => {
           addIssuesToView={addIssuesToView}
           selectionHelpers={selectionHelpers}
           handleCollapsedGroups={handleCollapsedGroups}
+          isEpic={isEpic}
         />
       </Row>
       {shouldExpand && (
@@ -292,6 +295,7 @@ export const ListGroup = observer((props: Props) => {
               isDragAllowed={isDragAllowed}
               canDropOverIssue={!canOverlayBeVisible}
               selectionHelpers={selectionHelpers}
+              isEpic={isEpic}
             />
           )}
 

web/core/components/issues/issue-layouts/properties/all-properties.tsx

@@ -42,10 +42,11 @@ export interface IIssueProperties {
   isReadOnly: boolean;
   className: string;
   activeLayout: string;
+  isEpic?: boolean;
 }
 
 export const IssueProperties: React.FC<IIssueProperties> = observer((props) => {
-  const { issue, updateIssue, displayProperties, activeLayout, isReadOnly, className } = props;
+  const { issue, updateIssue, displayProperties, activeLayout, isReadOnly, className, isEpic = false } = props;
   // store hooks
   const { getProjectById } = useProject();
   const { labelMap } = useLabel();
@@ -376,42 +377,46 @@ export const IssueProperties: React.FC<IIssueProperties> = observer((props) => {
         </div>
       </WithDisplayPropertiesHOC>
 
-      {/* modules */}
-      {projectDetails?.module_view && (
-        <WithDisplayPropertiesHOC displayProperties={displayProperties} displayPropertyKey="modules">
-          <div className="h-5" onClick={handleEventPropagation}>
-            <ModuleDropdown
-              buttonContainerClassName="truncate max-w-40"
-              projectId={issue?.project_id}
-              value={issue?.module_ids ?? []}
-              onChange={handleModule}
-              disabled={isReadOnly}
-              renderByDefault={isMobile}
-              multiple
-              buttonVariant="border-with-text"
-              showCount
-              showTooltip
-            />
-          </div>
-        </WithDisplayPropertiesHOC>
-      )}
+      {!isEpic && (
+        <>
+          {/* modules */}
+          {projectDetails?.module_view && (
+            <WithDisplayPropertiesHOC displayProperties={displayProperties} displayPropertyKey="modules">
+              <div className="h-5" onClick={handleEventPropagation}>
+                <ModuleDropdown
+                  buttonContainerClassName="truncate max-w-40"
+                  projectId={issue?.project_id}
+                  value={issue?.module_ids ?? []}
+                  onChange={handleModule}
+                  disabled={isReadOnly}
+                  renderByDefault={isMobile}
+                  multiple
+                  buttonVariant="border-with-text"
+                  showCount
+                  showTooltip
+                />
+              </div>
+            </WithDisplayPropertiesHOC>
+          )}
 
-      {/* cycles */}
-      {projectDetails?.cycle_view && (
-        <WithDisplayPropertiesHOC displayProperties={displayProperties} displayPropertyKey="cycle">
-          <div className="h-5" onClick={handleEventPropagation}>
-            <CycleDropdown
-              buttonContainerClassName="truncate max-w-40"
-              projectId={issue?.project_id}
-              value={issue?.cycle_id}
-              onChange={handleCycle}
-              disabled={isReadOnly}
-              buttonVariant="border-with-text"
-              renderByDefault={isMobile}
-              showTooltip
-            />
-          </div>
-        </WithDisplayPropertiesHOC>
+          {/* cycles */}
+          {projectDetails?.cycle_view && (
+            <WithDisplayPropertiesHOC displayProperties={displayProperties} displayPropertyKey="cycle">
+              <div className="h-5" onClick={handleEventPropagation}>
+                <CycleDropdown
+                  buttonContainerClassName="truncate max-w-40"
+                  projectId={issue?.project_id}
+                  value={issue?.cycle_id}
+                  onChange={handleCycle}
+                  disabled={isReadOnly}
+                  buttonVariant="border-with-text"
+                  renderByDefault={isMobile}
+                  showTooltip
+                />
+              </div>
+            </WithDisplayPropertiesHOC>
+          )}
+        </>
       )}
 
       {/* estimates */}

web/core/components/issues/issue-layouts/spreadsheet/base-spreadsheet-root.tsx

@@ -26,17 +26,19 @@ export type SpreadsheetStoreType =
   | EIssuesStoreType.CYCLE
   | EIssuesStoreType.PROJECT_VIEW
   | EIssuesStoreType.TEAM
-  | EIssuesStoreType.TEAM_VIEW;
+  | EIssuesStoreType.TEAM_VIEW
+  | EIssuesStoreType.EPIC;
 
 interface IBaseSpreadsheetRoot {
   QuickActions: FC<IQuickActionProps>;
   canEditPropertiesBasedOnProject?: (projectId: string) => boolean;
   isCompletedCycle?: boolean;
   viewId?: string | undefined;
+  isEpic?: boolean;
 }
 
 export const BaseSpreadsheetRoot = observer((props: IBaseSpreadsheetRoot) => {
-  const { QuickActions, canEditPropertiesBasedOnProject, isCompletedCycle = false, viewId } = props;
+  const { QuickActions, canEditPropertiesBasedOnProject, isCompletedCycle = false, viewId, isEpic = false } = props;
   // router
   const { projectId } = useParams();
   // store hooks
@@ -126,6 +128,7 @@ export const BaseSpreadsheetRoot = observer((props: IBaseSpreadsheetRoot) => {
         disableIssueCreation={!enableIssueCreation || !isEditingAllowed || isCompletedCycle}
         canLoadMoreIssues={!!nextPageResults}
         loadMoreIssues={fetchNextIssues}
+        isEpic={isEpic}
       />
     </IssueLayoutHOC>
   );

web/core/components/issues/issue-layouts/spreadsheet/issue-row.tsx

@@ -4,6 +4,7 @@ import { Dispatch, MouseEvent, MutableRefObject, SetStateAction, useRef, useStat
 import { observer } from "mobx-react";
 import { useParams } from "next/navigation";
 import { ChevronRight, MoreHorizontal } from "lucide-react";
+import { EIssueServiceType } from "@plane/constants";
 // plane helpers
 import { useOutsideClickDetector } from "@plane/hooks";
 // types
@@ -44,6 +45,7 @@ interface Props {
   spacingLeft?: number;
   selectionHelpers: TSelectionHelper;
   shouldRenderByDefault?: boolean;
+  isEpic?: boolean;
 }
 
 export const SpreadsheetIssueRow = observer((props: Props) => {
@@ -62,11 +64,12 @@ export const SpreadsheetIssueRow = observer((props: Props) => {
     spacingLeft = 6,
     selectionHelpers,
     shouldRenderByDefault,
+    isEpic = false,
   } = props;
   // states
   const [isExpanded, setExpanded] = useState<boolean>(false);
   // store hooks
-  const { subIssues: subIssuesStore } = useIssueDetail();
+  const { subIssues: subIssuesStore } = useIssueDetail(isEpic ? EIssueServiceType.EPICS : EIssueServiceType.ISSUES);
   const { issueMap } = useIssues();
 
   // derived values
@@ -110,10 +113,12 @@ export const SpreadsheetIssueRow = observer((props: Props) => {
           setExpanded={setExpanded}
           spreadsheetColumnsList={spreadsheetColumnsList}
           selectionHelpers={selectionHelpers}
+          isEpic={isEpic}
         />
       </RenderIfVisible>
 
       {isExpanded &&
+        !isEpic &&
         subIssues?.map((subIssueId: string) => (
           <SpreadsheetIssueRow
             key={subIssueId}
@@ -152,6 +157,7 @@ interface IssueRowDetailsProps {
   spreadsheetColumnsList: (keyof IIssueDisplayProperties)[];
   spacingLeft?: number;
   selectionHelpers: TSelectionHelper;
+  isEpic?: boolean;
 }
 
 const IssueRowDetails = observer((props: IssueRowDetailsProps) => {
@@ -170,6 +176,7 @@ const IssueRowDetails = observer((props: IssueRowDetailsProps) => {
     spreadsheetColumnsList,
     spacingLeft = 6,
     selectionHelpers,
+    isEpic = false,
   } = props;
   // states
   const [isMenuActive, setIsMenuActive] = useState(false);
@@ -180,8 +187,8 @@ const IssueRowDetails = observer((props: IssueRowDetailsProps) => {
   const { workspaceSlug, projectId } = useParams();
   // hooks
   const { getProjectIdentifierById } = useProject();
-  const { getIsIssuePeeked, peekIssue } = useIssueDetail();
-  const { handleRedirection } = useIssuePeekOverviewRedirection();
+  const { getIsIssuePeeked, peekIssue } = useIssueDetail(isEpic ? EIssueServiceType.EPICS : EIssueServiceType.ISSUES);
+  const { handleRedirection } = useIssuePeekOverviewRedirection(isEpic);
   const { isMobile } = usePlatformOS();
 
   // handlers
@@ -243,7 +250,7 @@ const IssueRowDetails = observer((props: IssueRowDetailsProps) => {
         className="relative md:sticky left-0 z-10 group/list-block bg-custom-background-100"
       >
         <ControlLink
-          href={`/${workspaceSlug}/projects/${issueDetail.project_id}/issues/${issueId}`}
+          href={`/${workspaceSlug}/projects/${issueDetail.project_id}/${isEpic ? "epics" : "issues"}/${issueId}`}
           onClick={() => handleIssuePeekOverview(issueDetail)}
           className={cn(
             "group clickable cursor-pointer h-11 w-[28rem] flex items-center text-sm after:absolute border-r-[0.5px] z-10 border-custom-border-200 bg-transparent group-[.selected-issue-row]:bg-custom-primary-100/5 group-[.selected-issue-row]:hover:bg-custom-primary-100/10",
@@ -307,7 +314,7 @@ const IssueRowDetails = observer((props: IssueRowDetailsProps) => {
 
               {/* sub-issues chevron */}
               <div className="grid place-items-center size-4">
-                {subIssuesCount > 0 && (
+                {subIssuesCount > 0 && !isEpic && (
                   <button
                     type="button"
                     className="grid place-items-center size-4 rounded-sm text-custom-text-400 hover:text-custom-text-300"

web/core/components/issues/issue-layouts/spreadsheet/spreadsheet-table.tsx

@@ -29,6 +29,7 @@ type Props = {
   loadMoreIssues: () => void;
   spreadsheetColumnsList: (keyof IIssueDisplayProperties)[];
   selectionHelpers: TSelectionHelper;
+  isEpic?: boolean;
 };
 
 export const SpreadsheetTable = observer((props: Props) => {
@@ -47,6 +48,7 @@ export const SpreadsheetTable = observer((props: Props) => {
     loadMoreIssues,
     spreadsheetColumnsList,
     selectionHelpers,
+    isEpic = false,
   } = props;
 
   // states
@@ -127,6 +129,7 @@ export const SpreadsheetTable = observer((props: Props) => {
             isScrolled={isScrolled}
             spreadsheetColumnsList={spreadsheetColumnsList}
             selectionHelpers={selectionHelpers}
+            isEpic={isEpic}
           />
         ))}
       </tbody>

web/core/components/issues/issue-layouts/spreadsheet/spreadsheet-view.tsx

@@ -34,6 +34,7 @@ type Props = {
   enableQuickCreateIssue?: boolean;
   disableIssueCreation?: boolean;
   isWorkspaceLevel?: boolean;
+  isEpic?: boolean;
 };
 
 export const SpreadsheetView: React.FC<Props> = observer((props) => {
@@ -51,6 +52,7 @@ export const SpreadsheetView: React.FC<Props> = observer((props) => {
     canLoadMoreIssues,
     loadMoreIssues,
     isWorkspaceLevel = false,
+    isEpic = false,
   } = props;
   // refs
   const containerRef = useRef<HTMLTableElement | null>(null);
@@ -85,7 +87,7 @@ export const SpreadsheetView: React.FC<Props> = observer((props) => {
         entities={{
           [SPREADSHEET_SELECT_GROUP]: issueIds,
         }}
-        disabled={!isBulkOperationsEnabled}
+        disabled={!isBulkOperationsEnabled || isEpic}
       >
         {(helpers) => (
           <>
@@ -105,6 +107,7 @@ export const SpreadsheetView: React.FC<Props> = observer((props) => {
                 loadMoreIssues={loadMoreIssues}
                 spreadsheetColumnsList={spreadsheetColumnsList}
                 selectionHelpers={helpers}
+                isEpic={isEpic}
               />
             </div>
             <div className="border-t border-custom-border-100">

web/core/components/issues/issue-modal/base.tsx

@@ -21,7 +21,7 @@ import { FileService } from "@/services/file.service";
 const fileService = new FileService();
 // local components
 import { DraftIssueLayout } from "./draft-issue-layout";
-import { IssueFormRoot } from "./form";
+import { type IssueFormProps, IssueFormRoot } from "./form";
 
 export const CreateUpdateIssueModalBase: React.FC<IssuesModalProps> = observer((props) => {
   const {
@@ -41,7 +41,9 @@ export const CreateUpdateIssueModalBase: React.FC<IssuesModalProps> = observer((
   } = props;
   const issueStoreType = useIssueStoreType();
 
-  const storeType = issueStoreFromProps ?? issueStoreType;
+  const storeType = (issueStoreFromProps ? issueStoreFromProps : issueStoreType === EIssuesStoreType.EPIC)
+    ? EIssuesStoreType.PROJECT
+    : issueStoreType;
   // ref
   const issueTitleRef = useRef<HTMLInputElement>(null);
   // states
@@ -333,6 +335,30 @@ export const CreateUpdateIssueModalBase: React.FC<IssuesModalProps> = observer((
   // don't open the modal if there are no projects
   if (!projectIdsWithCreatePermissions || projectIdsWithCreatePermissions.length === 0 || !activeProjectId) return null;
 
+  const commonIssueModalProps: IssueFormProps = {
+    issueTitleRef: issueTitleRef,
+    data: {
+      ...data,
+      description_html: description,
+      cycle_id: data?.cycle_id ? data?.cycle_id : cycleId ? cycleId.toString() : null,
+      module_ids: data?.module_ids ? data?.module_ids : moduleId ? [moduleId.toString()] : null,
+    },
+    onAssetUpload: handleUpdateUploadedAssetIds,
+    onClose: handleClose,
+    onSubmit: (payload) => handleFormSubmit(payload, isDraft),
+    projectId: activeProjectId,
+    isCreateMoreToggleEnabled: createMore,
+    onCreateMoreToggleChange: handleCreateMoreToggleChange,
+    isDraft: isDraft,
+    moveToIssue: moveToIssue,
+    modalTitle: modalTitle,
+    primaryButtonText: primaryButtonText,
+    isDuplicateModalOpen: isDuplicateModalOpen,
+    handleDuplicateIssueModal: handleDuplicateIssueModal,
+    isProjectSelectionDisabled: isProjectSelectionDisabled,
+    storeType: storeType,
+  };
+
   return (
     <ModalCore
       isOpen={isOpen}
@@ -342,51 +368,9 @@ export const CreateUpdateIssueModalBase: React.FC<IssuesModalProps> = observer((
       className="!bg-transparent rounded-lg shadow-none transition-[width] ease-linear"
     >
       {withDraftIssueWrapper ? (
-        <DraftIssueLayout
-          changesMade={changesMade}
-          data={{
-            ...data,
-            description_html: description,
-            cycle_id: data?.cycle_id ? data?.cycle_id : cycleId ? cycleId.toString() : null,
-            module_ids: data?.module_ids ? data?.module_ids : moduleId ? [moduleId.toString()] : null,
-          }}
-          issueTitleRef={issueTitleRef}
-          onAssetUpload={handleUpdateUploadedAssetIds}
-          onChange={handleFormChange}
-          onClose={handleClose}
-          onSubmit={(payload) => handleFormSubmit(payload, isDraft)}
-          projectId={activeProjectId}
-          isCreateMoreToggleEnabled={createMore}
-          onCreateMoreToggleChange={handleCreateMoreToggleChange}
-          isDraft={isDraft}
-          moveToIssue={moveToIssue}
-          isDuplicateModalOpen={isDuplicateModalOpen}
-          handleDuplicateIssueModal={handleDuplicateIssueModal}
-          isProjectSelectionDisabled={isProjectSelectionDisabled}
-        />
+        <DraftIssueLayout {...commonIssueModalProps} changesMade={changesMade} onChange={handleFormChange} />
       ) : (
-        <IssueFormRoot
-          issueTitleRef={issueTitleRef}
-          data={{
-            ...data,
-            description_html: description,
-            cycle_id: data?.cycle_id ? data?.cycle_id : cycleId ? cycleId.toString() : null,
-            module_ids: data?.module_ids ? data?.module_ids : moduleId ? [moduleId.toString()] : null,
-          }}
-          onAssetUpload={handleUpdateUploadedAssetIds}
-          onClose={handleClose}
-          isCreateMoreToggleEnabled={createMore}
-          onCreateMoreToggleChange={handleCreateMoreToggleChange}
-          onSubmit={(payload) => handleFormSubmit(payload, isDraft)}
-          projectId={activeProjectId}
-          isDraft={isDraft}
-          moveToIssue={moveToIssue}
-          modalTitle={modalTitle}
-          primaryButtonText={primaryButtonText}
-          isDuplicateModalOpen={isDuplicateModalOpen}
-          handleDuplicateIssueModal={handleDuplicateIssueModal}
-          isProjectSelectionDisabled={isProjectSelectionDisabled}
-        />
+        <IssueFormRoot {...commonIssueModalProps} />
       )}
     </ModalCore>
   );

web/core/components/issues/issue-modal/components/default-properties.tsx

@@ -332,6 +332,7 @@ export const IssueDefaultProperties: React.FC<TIssueDefaultPropertiesProps> = ob
             }}
             projectId={projectId ?? undefined}
             issueId={isDraft ? undefined : id}
+            searchEpic
           />
         )}
       />

web/core/components/issues/issue-modal/context/index.ts

@@ -1 +1 @@
-export * from "./issue-modal";
+export * from "./issue-modal-context";

web/core/components/issues/issue-modal/draft-issue-layout.tsx

@@ -16,51 +16,15 @@ import { isEmptyHtmlString } from "@/helpers/string.helper";
 import { useIssueModal } from "@/hooks/context/use-issue-modal";
 import { useEventTracker, useWorkspaceDraftIssues } from "@/hooks/store";
 // local components
-import { IssueFormRoot } from "./form";
+import { IssueFormRoot, type IssueFormProps } from "./form";
 
-export interface DraftIssueProps {
+export interface DraftIssueProps extends IssueFormProps {
   changesMade: Partial<TIssue> | null;
-  data?: Partial<TIssue>;
-  issueTitleRef: React.MutableRefObject<HTMLInputElement | null>;
-  isCreateMoreToggleEnabled: boolean;
-  onAssetUpload: (assetId: string) => void;
-  onCreateMoreToggleChange: (value: boolean) => void;
   onChange: (formData: Partial<TIssue> | null) => void;
-  onClose: (saveDraftIssueInLocalStorage?: boolean) => void;
-  onSubmit: (formData: Partial<TIssue>, is_draft_issue?: boolean) => Promise<void>;
-  projectId: string;
-  isDraft: boolean;
-  moveToIssue?: boolean;
-  modalTitle?: string;
-  primaryButtonText?: {
-    default: string;
-    loading: string;
-  };
-  isDuplicateModalOpen: boolean;
-  handleDuplicateIssueModal: (isOpen: boolean) => void;
-  isProjectSelectionDisabled?: boolean;
 }
 
 export const DraftIssueLayout: React.FC<DraftIssueProps> = observer((props) => {
-  const {
-    changesMade,
-    data,
-    issueTitleRef,
-    onAssetUpload,
-    onChange,
-    onClose,
-    onSubmit,
-    projectId,
-    isCreateMoreToggleEnabled,
-    onCreateMoreToggleChange,
-    isDraft,
-    moveToIssue = false,
-    modalTitle,
-    primaryButtonText,
-    isDuplicateModalOpen,
-    handleDuplicateIssueModal,
-    isProjectSelectionDisabled = false,
-  } = props;
+  const { changesMade, data, onChange, onClose, projectId } = props;
   // states
   const [issueDiscardModal, setIssueDiscardModal] = useState(false);
   // router params
@@ -74,7 +38,7 @@ export const DraftIssueLayout: React.FC<DraftIssueProps> = observer((props) => {
 
   const handleClose = () => {
     if (data?.id) {
-      onClose(false);
+      onClose();
       setIssueDiscardModal(false);
     } else {
       if (changesMade) {
@@ -93,11 +57,11 @@ export const DraftIssueLayout: React.FC<DraftIssueProps> = observer((props) => {
             delete changesMade.description_html;
         });
         if (isEmpty(changesMade)) {
-          onClose(false);
+          onClose();
           setIssueDiscardModal(false);
         } else setIssueDiscardModal(true);
       } else {
-        onClose(false);
+        onClose();
         setIssueDiscardModal(false);
       }
     }
@@ -126,7 +90,7 @@ export const DraftIssueLayout: React.FC<DraftIssueProps> = observer((props) => {
         });
         onChange(null);
         setIssueDiscardModal(false);
-        onClose(false);
+        onClose();
         return res;
       })
       .catch(() => {
@@ -162,27 +126,10 @@ export const DraftIssueLayout: React.FC<DraftIssueProps> = observer((props) => {
         onDiscard={() => {
           onChange(null);
           setIssueDiscardModal(false);
-          onClose(false);
+          onClose();
         }}
       />
-      <IssueFormRoot
-        isCreateMoreToggleEnabled={isCreateMoreToggleEnabled}
-        onCreateMoreToggleChange={onCreateMoreToggleChange}
-        data={data}
-        issueTitleRef={issueTitleRef}
-        onAssetUpload={onAssetUpload}
-        onChange={onChange}
-        onClose={handleClose}
-        onSubmit={onSubmit}
-        projectId={projectId}
-        isDraft={isDraft}
-        moveToIssue={moveToIssue}
-        modalTitle={modalTitle}
-        primaryButtonText={primaryButtonText}
-        isDuplicateModalOpen={isDuplicateModalOpen}
-        handleDuplicateIssueModal={handleDuplicateIssueModal}
-        isProjectSelectionDisabled={isProjectSelectionDisabled}
-      />
+      <IssueFormRoot {...props} onClose={handleClose} />
     </>
   );
 });

web/core/components/issues/issue-modal/form.tsx

@@ -19,6 +19,7 @@ import {
   IssueTitleInput,
 } from "@/components/issues/issue-modal/components";
 import { CreateLabelModal } from "@/components/labels";
+import { EIssuesStoreType } from "@/constants/issue";
 import { ETabIndices } from "@/constants/tab-indices";
 // helpers
 import { cn } from "@/helpers/common.helper";
@@ -72,6 +73,7 @@ export interface IssueFormProps {
   isDuplicateModalOpen: boolean;
   handleDuplicateIssueModal: (isOpen: boolean) => void;
   isProjectSelectionDisabled?: boolean;
+  storeType: EIssuesStoreType;
 }
 
 export const IssueFormRoot: FC<IssueFormProps> = observer((props) => {
@@ -86,8 +88,8 @@ export const IssueFormRoot: FC<IssueFormProps> = observer((props) => {
     isCreateMoreToggleEnabled,
     onCreateMoreToggleChange,
     isDraft,
-    moveToIssue,
-    modalTitle = `${data?.id ? "Update" : isDraft ? "Create a draft" : "Create new issue"}`,
+    moveToIssue = false,
+    modalTitle,
     primaryButtonText = {
       default: `${data?.id ? "Update" : isDraft ? "Save to Drafts" : "Save"}`,
       loading: `${data?.id ? "Updating" : "Saving"}`,
@@ -95,6 +97,7 @@ export const IssueFormRoot: FC<IssueFormProps> = observer((props) => {
     isDuplicateModalOpen,
     handleDuplicateIssueModal,
     isProjectSelectionDisabled = false,
+    storeType,
   } = props;
 
   // states
@@ -280,6 +283,7 @@ export const IssueFormRoot: FC<IssueFormProps> = observer((props) => {
 
   // debounced duplicate issues swr
   const { duplicateIssues } = useDebouncedDuplicateIssues(
+    workspaceSlug?.toString(),
     projectDetails?.workspace.toString(),
     projectId ?? undefined,
     {
@@ -373,7 +377,7 @@ export const IssueFormRoot: FC<IssueFormProps> = observer((props) => {
                     disabled={!!data?.id || !!data?.sourceIssueId || isProjectSelectionDisabled}
                     handleFormChange={handleFormChange}
                   />
-                  {projectId && (
+                  {projectId && storeType !== EIssuesStoreType.EPIC && (
                     <IssueTypeSelect
                       control={control}
                       projectId={projectId}

web/core/components/issues/parent-issues-list-modal.tsx

@@ -29,6 +29,7 @@ type Props = {
   onChange: (issue: ISearchIssueResponse) => void;
   projectId: string | undefined;
   issueId?: string;
+  searchEpic?: boolean;
 };
 
 // services
@@ -41,6 +42,7 @@ export const ParentIssuesListModal: React.FC<Props> = ({
   onChange,
   projectId,
   issueId,
+  searchEpic = false,
 }) => {
   const [isLoading, setIsLoading] = useState(false);
   const [searchTerm, setSearchTerm] = useState("");
@@ -72,6 +74,7 @@ export const ParentIssuesListModal: React.FC<Props> = ({
         parent: true,
         issue_id: issueId,
         workspace_search: isWorkspaceLevel,
+        epic: searchEpic ? true : undefined,
       })
       .then((res) => setIssues(res))
       .finally(() => {

web/core/components/issues/peek-overview/issue-detail.tsx

@@ -57,11 +57,16 @@ export const PeekOverviewIssueDetails: FC<IPeekOverviewIssueDetails> = observer(
   const issue = issueId ? getIssueById(issueId) : undefined;
   const projectDetails = issue?.project_id ? getProjectById(issue?.project_id) : undefined;
   // debounced duplicate issues swr
-  const { duplicateIssues } = useDebouncedDuplicateIssues(projectDetails?.workspace.toString(), projectDetails?.id, {
-    name: issue?.name,
-    description_html: getTextContent(issue?.description_html),
-    issueId: issue?.id,
-  });
+  const { duplicateIssues } = useDebouncedDuplicateIssues(
+    workspaceSlug,
+    projectDetails?.workspace.toString(),
+    projectDetails?.id,
+    {
+      name: issue?.name,
+      description_html: getTextContent(issue?.description_html),
+      issueId: issue?.id,
+    }
+  );
 
   if (!issue || !issue.project_id) return <></>;
 

web/core/components/issues/peek-overview/root.tsx

@@ -14,7 +14,7 @@ import { ISSUE_UPDATED, ISSUE_DELETED, ISSUE_ARCHIVED, ISSUE_RESTORED } from "@/
 import { EIssuesStoreType } from "@/constants/issue";
 // hooks
 import { useEventTracker, useIssueDetail, useIssues, useUserPermissions } from "@/hooks/store";
-import { useIssuesStore } from "@/hooks/use-issue-layout-store";
+import { useIssueStoreType } from "@/hooks/use-issue-layout-store";
 // plane web constants
 import { EUserPermissions, EUserPermissionsLevel } from "@/plane-web/constants/user-permissions";
 
@@ -22,10 +22,16 @@ interface IIssuePeekOverview {
   embedIssue?: boolean;
   embedRemoveCurrentNotification?: () => void;
   is_draft?: boolean;
+  storeType?: EIssuesStoreType;
 }
 
 export const IssuePeekOverview: FC<IIssuePeekOverview> = observer((props) => {
-  const { embedIssue = false, embedRemoveCurrentNotification, is_draft = false } = props;
+  const {
+    embedIssue = false,
+    embedRemoveCurrentNotification,
+    is_draft = false,
+    storeType: issueStoreFromProps,
+  } = props;
   // router
   const pathname = usePathname();
   // store hook
@@ -40,8 +46,9 @@ export const IssuePeekOverview: FC<IIssuePeekOverview> = observer((props) => {
     issue: { fetchIssue, getIsFetchingIssueDetails },
     fetchActivities,
   } = useIssueDetail();
-
-  const { issues } = useIssuesStore();
+  const issueStoreType = useIssueStoreType();
+  const storeType = issueStoreFromProps ?? issueStoreType;
+  const { issues } = useIssues(storeType);
   const { captureIssueEvent } = useEventTracker();
   // state
   const [error, setError] = useState(false);

web/core/components/issues/peek-overview/view.tsx

@@ -1,5 +1,7 @@
 import { FC, useRef, useState } from "react";
 import { observer } from "mobx-react";
+// constants
+import { EIssueServiceType } from "@plane/constants";
 // types
 import { TNameDescriptionLoader } from "@plane/types";
 // components
@@ -65,6 +67,7 @@ export const IssueView: FC<IIssueView> = observer((props) => {
     toggleArchiveIssueModal,
     issue: { getIssueById, getIsLocalDBIssueDescription },
   } = useIssueDetail();
+  const { isAnyModalOpen: isAnyEpicModalOpen } = useIssueDetail(EIssueServiceType.EPICS);
   const issue = getIssueById(issueId);
   // remove peek id
   const removeRoutePeekId = () => {
@@ -78,7 +81,7 @@ export const IssueView: FC<IIssueView> = observer((props) => {
     issuePeekOverviewRef,
     () => {
       if (!embedIssue) {
-        if (!isAnyModalOpen) {
+        if (!isAnyModalOpen && !isAnyEpicModalOpen) {
           removeRoutePeekId();
         }
       }

web/core/components/issues/relations/issue-list-item.tsx

@@ -4,7 +4,8 @@ import React, { FC } from "react";
 import { observer } from "mobx-react";
 import { X, Pencil, Trash, Link as LinkIcon } from "lucide-react";
 // Plane
-import { TIssue } from "@plane/types";
+import { EIssueServiceType } from "@plane/constants";
+import { TIssue, TIssueServiceType } from "@plane/types";
 import { ControlLink, CustomMenu, Tooltip } from "@plane/ui";
 // components
 import { RelationIssueProperty } from "@/components/issues/relations";
@@ -27,6 +28,7 @@ type Props = {
   disabled: boolean;
   issueOperations: TRelationIssueOperations;
   handleIssueCrudState: (key: "update" | "delete", issueId: string, issue?: TIssue | null) => void;
+  issueServiceType?: TIssueServiceType;
 };
 
 export const RelationIssueListItem: FC<Props> = observer((props) => {
@@ -39,6 +41,7 @@ export const RelationIssueListItem: FC<Props> = observer((props) => {
     disabled = false,
     issueOperations,
     handleIssueCrudState,
+    issueServiceType = EIssueServiceType.ISSUES,
   } = props;
 
   // store hooks
@@ -47,7 +50,7 @@ export const RelationIssueListItem: FC<Props> = observer((props) => {
     removeRelation,
     toggleCreateIssueModal,
     toggleDeleteIssueModal,
-  } = useIssueDetail();
+  } = useIssueDetail(issueServiceType);
   const project = useProject();
   const { getProjectStates } = useProjectState();
   const { handleRedirection } = useIssuePeekOverviewRedirection();
@@ -137,6 +140,7 @@ export const RelationIssueListItem: FC<Props> = observer((props) => {
                 issueId={relationIssueId}
                 disabled={disabled}
                 issueOperations={issueOperations}
+                issueServiceType={issueServiceType}
               />
             </div>
             <div className="flex-shrink-0 text-sm">

web/core/components/issues/relations/issue-list.tsx

@@ -2,7 +2,8 @@
 import React, { FC } from "react";
 import { observer } from "mobx-react";
 // Plane
-import { TIssue } from "@plane/types";
+import { EIssueServiceType } from "@plane/constants";
+import { TIssue, TIssueServiceType } from "@plane/types";
 // components
 import { RelationIssueListItem } from "@/components/issues/relations";
 // Plane-web
@@ -19,6 +20,7 @@ type Props = {
   issueOperations: TRelationIssueOperations;
   handleIssueCrudState: (key: "update" | "delete", issueId: string, issue?: TIssue | null) => void;
   disabled?: boolean;
+  issueServiceType?: TIssueServiceType;
 };
 
 export const RelationIssueList: FC<Props> = observer((props) => {
@@ -31,6 +33,7 @@ export const RelationIssueList: FC<Props> = observer((props) => {
     disabled = false,
     issueOperations,
     handleIssueCrudState,
+    issueServiceType = EIssueServiceType.ISSUES,
   } = props;
 
   return (
@@ -48,6 +51,7 @@ export const RelationIssueList: FC<Props> = observer((props) => {
             disabled={disabled}
             handleIssueCrudState={handleIssueCrudState}
             issueOperations={issueOperations}
+            issueServiceType={issueServiceType}
           />
         ))}
     </div>

web/core/components/issues/relations/properties.tsx

@@ -1,8 +1,9 @@
 "use client";
 import React, { FC } from "react";
 import { observer } from "mobx-react";
+import { EIssueServiceType } from "@plane/constants";
 // components
-import { TIssuePriorities } from "@plane/types";
+import { TIssuePriorities, TIssueServiceType } from "@plane/types";
 import { PriorityDropdown, MemberDropdown, StateDropdown } from "@/components/dropdowns";
 // hooks
 import { useIssueDetail } from "@/hooks/store";
@@ -14,14 +15,15 @@ type Props = {
   issueId: string;
   disabled: boolean;
   issueOperations: TRelationIssueOperations;
+  issueServiceType?: TIssueServiceType;
 };
 
 export const RelationIssueProperty: FC<Props> = observer((props) => {
-  const { workspaceSlug, issueId, disabled, issueOperations } = props;
+  const { workspaceSlug, issueId, disabled, issueOperations, issueServiceType = EIssueServiceType.ISSUES } = props;
   // hooks
   const {
     issue: { getIssueById },
-  } = useIssueDetail();
+  } = useIssueDetail(issueServiceType);
 
   // derived value
   const issue = getIssueById(issueId);

web/core/components/issues/sub-issues/issue-list-item.tsx

@@ -3,7 +3,7 @@
 import React from "react";
 import { observer } from "mobx-react";
 import { ChevronRight, X, Pencil, Trash, Link as LinkIcon, Loader } from "lucide-react";
-import { TIssue } from "@plane/types";
+import { TIssue, TIssueServiceType } from "@plane/types";
 // ui
 import { ControlLink, CustomMenu, Tooltip } from "@plane/ui";
 // helpers
@@ -36,6 +36,7 @@ export interface ISubIssues {
   ) => void;
   subIssueOperations: TSubIssueOperations;
   issueId: string;
+  issueServiceType?: TIssueServiceType;
 }
 
 export const IssueListItem: React.FC<ISubIssues> = observer((props) => {