Users in Australia may be unable to access various Microsoft 365 Apps or services from portal.office.com
ID: MO1242002
Issue type: Incident
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Impacted services
Microsoft 365 suite
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Details
Title: Users in Australia may be unable to access various Microsoft 365 Apps or services from portal.office.com
User impact: Users may have been unable to access various Microsoft 365 Apps or services from portal.office.com.
More info: This issue affected users accessing apps or services from portal.office.com and m365.cloud.microsoft.com.
Final status: We've confirmed with a subset of reporting users, as well as our internal telemetry that service health is stable and impact has been remediated.
Scope of impact: Users in Australia attempting to access or use Microsoft 365 Apps and services may have been impacted.
Start time: Sunday, March 1, 2026, at 9:30 PM UTC
End time: Monday, March 2, 2026, at 2:30 AM UTC
Root cause: A resource contention caused by a spike in demand on infrastructure that facilitates access to Microsoft 365 Apps and services through the portal. This reduced the rate at which user requests were processed, which led to impact.
Next steps:
- We're further analyzing our service telemetry to help identify the underlying root cause of the spike in demand, as well as assessing whether additional monitoring can be implemented to help better detect similar issues in the future.
This is the final update for the event.
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