Microsoft 365 Alert – Service Degradation – Exchange Online – Admins may be unable to perform mailbox move functions in Multi-Geo environments – RESOLVED

11/01/2023 08:45:00 AM (GMT)

NHSmail Reference : INC33711371

Microsoft Reference : EX495744

Issue Status : RESOLVED

Issue Description : Admins may have been unable to perform mailbox move functions in Multi-Geo environments.

More Information : Admins may have been unable to perform mailbox move functions in Multi-Geo environments.

Affected scenarios included Multi-Geo tenant onboarding, migrations between Geos for a tenant, and tenant relocation to a different Geo. While remediation efforts were ongoing, Microsoft recommended refraining from migrating users outside of your region to prevent the migration from stalling.

Final Update : 11/01/2023 08:45:00 AM– Microsoft finished reverting the offending change, and they have monitored telemetry to confirm the impact is resolved.

Scope of impact : Some admins in Europe, North America, South America, and Asia Pacific regions attempting to perform mailbox move functions in Multi-Geo environments may have been impacted.

Root cause : A recent change to cross region authentication is preventing admins from performing mailbox move functions in Multi-Geo environments.

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