Microsoft 365 Alert : Service Degradation – Exchange Online – Admins are unable to assign delegates full access permissions to newly created shared mailboxes in Exchange Online – RESOLVED
25/11/2022 08:40:00 AM (GMT)
NHSmail Reference : INC32954156
Microsoft Reference : EX471164
Issue Status : RESOLVED
Issue Description : Admins may be unable to assign delegates full access permissions to newly created shared mailboxes in Exchange Online.
More info : Admins may be unable to assign delegates full access permissions to newly created shared mailboxes in Exchange Online.
Scope of impact : Impact is specific to admins delegating full access permissions to newly created shared mailboxes to any user.
Final Update : 29/11/2022 09:35:00 AM – Microsoft has disabled the change that added a new identifier property and confirmed with some of the affected users that that the impact was remediated.
Root cause : A recent change intended to add a new identifier property to the existing code path resulted in the wrong value being provided.
Next steps : Microsoft is working with affected organizations to help clean up impacted mailboxes that were created during the time of impact. They are reviewing their code update review procedures to help better catch similar issues before they implemented.