Degraded performance on Claude for Microsoft Office 365

Resolved

Yes — Claude had a problem on September 1, 2026, and Claude (Anthropic) has since marked it resolved. Claude (Anthropic)'s latest word: “This issue has been resolved.”

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Timeline

Started: 9/1/2026, 4:02:48 PM

Last update: 9/1/2026, 4:22:19 PM

Resolved: 9/1/2026, 4:22:19 PM

Affected: rwppv331jlwc

Claude (Anthropic)'s official report →

Updates

resolved
This issue has been resolved.
9/1/2026, 4:22:19 PM
investigating
We are investigating elevated errors affecting Claude for Microsoft Office 365. We will provide an update as soon as possible.
9/1/2026, 4:02:48 PM

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Is Claude down right now?All outage history →