TM1178840: Microsoft Teams Service Health Incident (Service Degradation)

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365 Service Alert

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Oct 24, 2025, 8:05:09 AMOct 24
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Some users may be unable to open Microsoft Teams.                                                                                                                                                                                                                                                           
Microsoft

Some users may be unable to open Microsoft Teams

ID: TM1178840

Issue type: Incident

Status

Service Degradation

Impacted services

Microsoft Teams

Details

Title: Some users may be unable to open Microsoft Teams

User impact: Users may be unable to open Microsoft Teams.

More info: Users who have characters in their user profile path that cannot be expressed in the Application and Network Seamlessly Integrated (ANSI) code page may be unable to open Microsoft Teams.

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

Scope of impact: Your organization is affected by this event, and some users attempting to open Microsoft Teams who have characters in their user profile path that cannot be expressed in the ANSI code page may be impacted.

Next update by: Friday, October 24, 2025, at 2:00 PM UTC

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