Outage in Microsoft 365

Some users may be unable to create, update, cancel, RSVP and forward meetings in Microsoft Teams

Resolved Minor
April 01, 2025 - Started 16 days ago - Lasted about 4 hours

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Outage Details

Title: Some users may be unable to create, update, cancel, RSVP and forward meetings in Microsoft Teams User impact: Users may be unable to create, update, cancel, RSVP and forward meetings in Microsoft Teams. More info: Affected users may also be unable to access their Exchange Online mailbox via any connection method. Current status: We're reviewing service monitoring telemetry to isolate the source of the issue and establish a fix. Scope of impact: Impact is specific to some users who are served through the affected infrastructure in the United Kingdom. Next update by: Tuesday, April 1, 2025, at 10:30 AM UTC
Components affected
Microsoft 365 suite
Latest Updates ( sorted recent to last )
16 days ago - at 04/01/2025 10:30AM

Title: Some users may be unable to create, update, cancel, RSVP and forward meetings in Microsoft Teams

User impact: Users may be unable to create, update, cancel, RSVP and forward meetings in Microsoft Teams.

More info: Affected users may also be unable to access their Exchange Online mailbox via any connection method.

Current status: We've identified that a recent standard service update inadvertently contains a code regression, which is resulting in impact. We’re reverting the update to mitigate impact.

Scope of impact: Impact is specific to some users who are served through the affected infrastructure in the United Kingdom.

Start time: Tuesday, April 1, 2025, at 6:47 AM UTC

Root cause: A recent standard service update inadvertently contains a code regression, which is resulting in impact.

Next update by: Tuesday, April 1, 2025, at 12:30 PM UTC

16 days ago - at 04/01/2025 08:17AM

Title: Some users may be unable to create, update, cancel, RSVP and forward meetings in Microsoft Teams

User impact: Users may be unable to create, update, cancel, RSVP and forward meetings in Microsoft Teams.

More info: Affected users may also be unable to access their Exchange Online mailbox via any connection method.

Current status: We're reviewing service monitoring telemetry to isolate the source of the issue and establish a fix.

Scope of impact: Impact is specific to some users who are served through the affected infrastructure in the United Kingdom.

Next update by: Tuesday, April 1, 2025, at 10:30 AM UTC

source IsDown Service outage affecting app functionality Reports started 39 minutes before official outage was reported

Users report inability to edit flows, load apps, and connect to services like Outlook and SharePoint. Issues include data retrieval failures across multiple apps.

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