Some users may see "unknown presence" instead of an accurate presence for certain users in Microsoft Teams
ID: TM1072942
Issue type: Incident
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Impacted services
Microsoft Teams
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Details
Title: Some users may see "unknown presence" instead of an accurate presence for certain users in Microsoft Teams
User impact: Users may have seen "unknown presence" instead of an accurate presence for certain users in Microsoft Teams.
More info: Users may have seen "unknown presence" showing for some cross cloud users. Users in the same cloud had their presence showing accurately.
Final status: We've confirmed that the fix has successfully been deployed and impact has been remediated.
Scope of impact: Some users may have seen "unknown presence" instead of an accurate presence for certain users in Microsoft Teams.
Start time: Monday, April 28, 2025, at 4:31 PM UTC
End time: Tuesday, May 13, 2025, at 10:45 PM UTC
Root cause: A recent infrastructure migration introduced a misconfiguration, which led to impact.
Next steps:
- We're reviewing the affected infrastructure for changes we can make to our testing and detection systems to help prevent similar issues from occurring again in the future.
This is the final update for the event.
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