PowerBI Security Group - Not Reflecting

Hi Ahmadbelal12 

The issue you're facing is most likely caused by your company’s domain change. When domains are updated, users often get new identities in Azure Active Directory (even if their names look the same). Power BI might not recognize the new UPNs correctly, which causes the added users to disappear after saving. Even though the UI says users are added, Power BI is probably failing to link those new identities on the backend.

Another likely cause is that the security groups you're using aren’t syncing properly or aren’t set up as Azure AD security groups. Power BI only works reliably with mail-enabled Azure AD security groups. If the group isn’t configured correctly, or hasn’t fully synced, Power BI won’t reflect its members. This is why the user count may go up temporarily but resets when you reload.

To test this, add a user directly to the RLS role instead of using a group. If that works, your issue is with the group. You should also test with the “View As Role” feature to check if access works even when the UI doesn't show the users. To confirm group membership, use PowerShell or the Power BI REST API.

In short, this is likely due to identity mismatch or a group sync issue. Fix the group in Azure AD, make sure users have the correct UPNs, and test access directly. If that doesn’t solve it, contact Microsoft support this is a common post-domain-change issue that may need backend fixes.