
You are right to recall that the "Dismiss All" functionality for In-App Notifications in Dynamics 365 (now Power Apps) had issues for non-System Administrator users in the past. While Microsoft has addressed many of the initial bugs and limitations of In-App Notifications, it's possible that this specific issue or a similar one might have resurfaced or wasn't fully resolved in all scenarios, especially in older versions or specific configurations.
Let's break down the potential reasons why the "Dismiss All" button might not be working for your non-System Administrator users and how to troubleshoot it:
Potential Reasons for "Dismiss All" Not Working for Non-Admins:
App Notification entity itself. While read access is likely granted for them to see the notifications, the "Dismiss All" action might require specific delete privileges (potentially bulk delete).
Troubleshooting Steps:
App Notification Entity Privileges:
App Notification is categorized in your version).App Notification entity:
App Notification entity with Read, Write, and Delete privileges at the User level. See if "Dismiss All" works for this user. This can help isolate if the issue is with other privileges in their standard roles.App Notification entity, check the audit logs for any failed operations when a non-admin user tries to "Dismiss All".App Notification entity or related forms to see if they are interfering with the "Dismiss All" functionality.
In summary, the most likely cause is a missing privilege on the App Notification entity, specifically the Delete privilege. Carefully review the security roles of your non-System Administrator users and ensure they have appropriate Delete access to this entity. If the issue continues, further investigation using the browser console and potentially contacting Microsoft Support will be necessary.