Microsoft 365 Alert : Service Degradation – Exchange Online – Admins may have been unable to view some users’ mailbox permissions in the compliance portal – RESOLVED

Announcements Sourav Nandi

08/11/2022 09:05:00 AM (BST)

NHSmail Reference : INC32387750

Microsoft Reference : EX450050

Issue Status : RESOLVED

Issue Description : Admins may have been unable to view some users’ mailbox permissions in the compliance portal.

More info : While this primarily impacted the Get-MailboxPermissions and Get-MailboxAutoReplyConfiguration cmdlets run through the compliance portal, it could have potentially affected other cmdlets as well. Admins with access to PowerShell could have used the Get-MailboxPermissions cmdlet to access users’ mailbox permission information.

Scope of Impact : This issue may have potentially affected any admin attempting to view some users’ mailbox permissions in the compliance portal.

Final Update : 08/11/2022 09:05:00 AM – Microsoft’s fix deployment has completed, and they have confirmed with affected admins that impact has been remediated.

Root cause : A recent service update intended to provide general optimizations and fixes had created a version mismatch on networking infrastructure which facilitates compliance portal actions.

Next steps : Microsoft is further reviewing the offending service change to better understand why impact was produced so similar problems can be identified before resulting in impact during their development and testing processes.