diff --git a/apiserver/plane/app/serializers/workspace.py b/apiserver/plane/app/serializers/workspace.py
index 69f827c24..b621cfd11 100644
--- a/apiserver/plane/app/serializers/workspace.py
+++ b/apiserver/plane/app/serializers/workspace.py
@@ -15,6 +15,7 @@ from plane.db.models import (
     WorkspaceTheme,
     WorkspaceUserProperties,
 )
+from plane.utils.constants import RESTRICTED_WORKSPACE_SLUGS
 
 
 class WorkSpaceSerializer(DynamicBaseSerializer):
@@ -23,20 +24,7 @@ class WorkSpaceSerializer(DynamicBaseSerializer):
     total_issues = serializers.IntegerField(read_only=True)
 
     def validated(self, data):
-        if data.get("slug") in [
-            "404",
-            "accounts",
-            "api",
-            "create-workspace",
-            "god-mode",
-            "installations",
-            "invitations",
-            "onboarding",
-            "profile",
-            "spaces",
-            "workspace-invitations",
-            "password",
-        ]:
+        if data.get("slug") in RESTRICTED_WORKSPACE_SLUGS:
             raise serializers.ValidationError({"slug": "Slug is not valid"})
 
     class Meta:
diff --git a/apiserver/plane/utils/constants.py b/apiserver/plane/utils/constants.py
new file mode 100644
index 000000000..635268628
--- /dev/null
+++ b/apiserver/plane/utils/constants.py
@@ -0,0 +1,30 @@
+RESTRICTED_WORKSPACE_SLUGS = [
+    "404",
+    "accounts",
+    "api",
+    "create-workspace",
+    "god-mode",
+    "installations",
+    "invitations",
+    "onboarding",
+    "profile",
+    "spaces",
+    "workspace-invitations",
+    "password",
+    "flags",
+    "monitor",
+    "monitoring",
+    "ingest",
+    "plane-pro",
+    "plane-ultimate",
+    "enterprise",
+    "plane-enterprise",
+    "disco",
+    "silo",
+    "chat",
+    "calendar",
+    "drive",
+    "channels",
+    "upgrade",
+    "billing",
+]