Outage in Microsoft 365 Consumer

Some users' chat messages may not be visible in Microsoft Teams Free when returning from being offline

Resolved Major
January 15, 2026 - Started 1 day ago - Lasted about 2 hours

Incident Report

We're continuing to investigate the failures, so that we can identify the root cause and determine the next steps to remediate the impact.
Components affected
Microsoft 365 Consumer Microsoft Teams Free

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Latest Updates ( sorted recent to last )
1 day ago - at 01/15/2026 05:22PM

Title: Some users' chat messages may not be visible in Microsoft Teams Free when returning from being offline
User impact: Users' chat messages may not be visible in Teams Free when returning from being offline.
More info: Most affected users may be able to view the chat page, but some message may not be visible. A subset of users may be unable to view the chat page and receive an error that states: "Chats are temporarily unavailable. You should still be able to use other parts of Teams."
Current status: We're continuing to investigate the failures, so that we can identify the root cause and determine the next steps to remediate the impact.
Start time: Thursday, January 15, 2026, at 2:15 PM UTC
Next update by: Thursday, January 15, 2026, at 7:30 PM UTC

1 day ago - at 01/15/2026 04:11PM

Title: Some users' chat messages may not be visible in Microsoft Teams Free when returning from being offline
User impact: Users' chat messages may not be visible in Teams Free when returning from being offline.
More info: Most affected users may be able to view the chat page, but some message may not be visible. A subset of users may be unable to view the chat page and receive an error that states: "Chats are temporarily unavailable. You should still be able to use other parts of Teams."
Current status: Our service health monitoring alerted us to failures occurring when some users attempt to view chat messages in Teams Free, and we're reviewing the failures to isolate their source.
Start time: Thursday, January 15, 2026, at 2:15 PM UTC
Next update by: Thursday, January 15, 2026, at 5:30 PM UTC

1 day ago - at 01/15/2026 03:59PM

Title: Some users' chat messages may not be visible in Microsoft Teams Free when returning from being offline
User impact: Users' chat messages may not be visible in Teams Free when returning from being offline.
Current status: We're investigating a potential issue with Microsoft Teams Free and checking for impact to your organization. We'll provide an update within 30 minutes.

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