diff --git a/projects/aca-content/src/lib/components/info-drawer/comments-tab/comments-tab.component.spec.ts b/projects/aca-content/src/lib/components/info-drawer/comments-tab/comments-tab.component.spec.ts
index 7e88e7b6b..be2d89448 100644
--- a/projects/aca-content/src/lib/components/info-drawer/comments-tab/comments-tab.component.spec.ts
+++ b/projects/aca-content/src/lib/components/info-drawer/comments-tab/comments-tab.component.spec.ts
@@ -29,17 +29,22 @@ import { NodePermissionService } from '@alfresco/aca-shared';
 import { Node } from '@alfresco/js-api';
 import { of } from 'rxjs';
 import { AuthenticationService } from '@alfresco/adf-core';
+import { ExternalNodePermissionCommentsTabService } from '@alfresco/aca-content';
 
 describe('CommentsTabComponent', () => {
   let component: CommentsTabComponent;
   let fixture: ComponentFixture<CommentsTabComponent>;
   let nodePermissionService: NodePermissionService;
   let checked: string[];
+  let canAddComment = true;
 
   beforeEach(() => {
     TestBed.configureTestingModule({
       imports: [AppTestingModule, CommentsTabComponent],
-      providers: [{ provide: AuthenticationService, useValue: { onLogout: of({}) } }]
+      providers: [
+        { provide: ExternalNodePermissionCommentsTabService, useValue: { canAddComments: () => canAddComment } },
+        { provide: AuthenticationService, useValue: { onLogout: of({}) } }
+      ]
     });
 
     nodePermissionService = TestBed.inject(NodePermissionService);
@@ -48,6 +53,7 @@ describe('CommentsTabComponent', () => {
     component = fixture.componentInstance;
 
     checked = null;
+    canAddComment = true;
     spyOn(nodePermissionService, 'check').and.callFake((_source, permissions) => {
       checked = permissions;
       return true;
@@ -107,4 +113,28 @@ describe('CommentsTabComponent', () => {
       expect(checked).toContain('update');
     });
   });
+
+  it('should return false if node permissions are correct and external service is not allowing it', async () => {
+    canAddComment = false;
+    component.node = {
+      id: 'test-node-id',
+      isFile: true,
+      isFolder: false
+    } as Node;
+    fixture.detectChanges();
+    await fixture.whenStable();
+    expect(component.canUpdateNode).toBe(false);
+  });
+
+  it('should return true if node permissions are correct and external service is allowing it', async () => {
+    canAddComment = true;
+    component.node = {
+      id: 'test-node-id',
+      isFile: true,
+      isFolder: false
+    } as Node;
+    fixture.detectChanges();
+    await fixture.whenStable();
+    expect(component.canUpdateNode).toBe(true);
+  });
 });
diff --git a/projects/aca-content/src/lib/components/info-drawer/comments-tab/comments-tab.component.ts b/projects/aca-content/src/lib/components/info-drawer/comments-tab/comments-tab.component.ts
index 52332d3ea..7ab27c2ed 100644
--- a/projects/aca-content/src/lib/components/info-drawer/comments-tab/comments-tab.component.ts
+++ b/projects/aca-content/src/lib/components/info-drawer/comments-tab/comments-tab.component.ts
@@ -22,11 +22,12 @@
  * from Hyland Software. If not, see <http://www.gnu.org/licenses/>.
  */
 
-import { Component, Input, OnInit, ViewEncapsulation } from '@angular/core';
+import { Component, Input, OnInit, Optional, ViewEncapsulation } from '@angular/core';
 import { Node } from '@alfresco/js-api';
-import { NodePermissionService, isLocked } from '@alfresco/aca-shared';
+import { isLocked, NodePermissionService } from '@alfresco/aca-shared';
 import { MatCardModule } from '@angular/material/card';
 import { NodeCommentsModule } from '@alfresco/adf-content-services';
+import { ExternalNodePermissionCommentsTabService } from './external-node-permission-comments-tab.service';
 
 @Component({
   standalone: true,
@@ -45,7 +46,10 @@ export class CommentsTabComponent implements OnInit {
 
   canUpdateNode = false;
 
-  constructor(private permission: NodePermissionService) {}
+  constructor(
+    private readonly permission: NodePermissionService,
+    @Optional() private readonly externalPermissionNodeService: ExternalNodePermissionCommentsTabService
+  ) {}
 
   ngOnInit(): void {
     if (!this.node) {
@@ -53,6 +57,9 @@ export class CommentsTabComponent implements OnInit {
     }
     if (this.node.isFolder || (this.node.isFile && !isLocked({ entry: this.node }))) {
       this.canUpdateNode = this.permission.check(this.node, ['update']);
+      if (this.externalPermissionNodeService) {
+        this.canUpdateNode &&= this.externalPermissionNodeService.canAddComments(this.node);
+      }
     }
   }
 }
diff --git a/projects/aca-content/src/lib/components/info-drawer/comments-tab/external-node-permission-comments-tab.service.ts b/projects/aca-content/src/lib/components/info-drawer/comments-tab/external-node-permission-comments-tab.service.ts
new file mode 100644
index 000000000..8903e7825
--- /dev/null
+++ b/projects/aca-content/src/lib/components/info-drawer/comments-tab/external-node-permission-comments-tab.service.ts
@@ -0,0 +1,29 @@
+/*!
+ * Copyright © 2005-2024 Hyland Software, Inc. and its affiliates. All rights reserved.
+ *
+ * Alfresco Example Content Application
+ *
+ * This file is part of the Alfresco Example Content Application.
+ * If the software was purchased under a paid Alfresco license, the terms of
+ * the paid license agreement will prevail. Otherwise, the software is
+ * provided under the following open source license terms:
+ *
+ * The Alfresco Example Content Application is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * The Alfresco Example Content Application is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * from Hyland Software. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import { Node } from '@alfresco/js-api';
+
+export abstract class ExternalNodePermissionCommentsTabService {
+  abstract canAddComments(node: Node): boolean;
+}
diff --git a/projects/aca-content/src/public-api.ts b/projects/aca-content/src/public-api.ts
index 21a0df3aa..8b6d1c60b 100644
--- a/projects/aca-content/src/public-api.ts
+++ b/projects/aca-content/src/public-api.ts
@@ -31,4 +31,5 @@ export * from './lib/aca-content.routes';
 export * from './lib/extensions/core.extensions.module';
 export * from './lib/store/initial-state';
 export * from './lib/services/content-url.service';
+export * from './lib/components/info-drawer/comments-tab/external-node-permission-comments-tab.service';
 export * from './lib/utils/aca-search-utils';