22-11-2021 07:52:00 AM (GMT)
Issue reported: 21/11/2021 10:24:00 AM
Microsoft Reference : MO298793
NHSmail Reference : INC25117121
Issue Status: RESTORED
Issue Description: Admins may have been unable to import existing mailbox data to new mailboxes within the Exchange Online service.
Scope of impact: This issue may have affected any admin attempting to import existing mailbox data within Exchange Online.
Final Update – 22/11/2021 07:52:00 AM: After validating the root cause of the issue, Microsoft reintroduced the absent code to the affected environment. They have confirmed with previously impacted admins that the issue has been remediated.