On Aug 20, 2025, we announced the Public Preview of Cloud-Managed Remote Mailboxes, a key step toward retiring the ‘last Exchange Server’ in your organization. The response from the community has bee...
Published Oct 15, 2025
Version 1.0
Blog Post
I tried setting one account to IsExchangeCloudManaged $true, and since then, I’ve been receiving a synchronization error from Entra Connect (version 2.5.79.0). The error is:
ExchangeManagedAttributesUpdateNotAllowed
No additional details are provided.
kumarmukeshMicrosoft
Gly I have dm'ed you to share more info over email to debug your problem. Please check your messages.