Jun 12 2023
Does Microsoft already have solution on this? After a user's domain was change to every file that was uploaded in Teams Chat cannot be access by those users.
Jun 13 2023
@ljlaureta Not that I've heard of, I assume they changed the users UPN somehow, which causes the URL to their OneDrive to change, hence breaking links.
How UPN changes affect OneDrive - SharePoint in Microsoft 365 | Microsoft Learn
The answer is to not change UPNs, too much impact. Doesn't stop the display name and email addresses being changed.