Microsoft 365 Alert – Service Degradation – Microsoft Copilot (Microsoft 365) – Users’ Microsoft 365 Copilot rewrite function outputs are incorrect or show unexpected text in some Outlook apps – ONGOING

Announcements Shagufta Naaz

04/03/2026 17:20:00 AM

NHSmail Reference: INC46764986

Microsoft Reference: CP1244084

Issue Status: ONGOING

Issue Description: Users’ Microsoft 365 Copilot rewrite function outputs are incorrect or show unexpected text in some Outlook apps.

More info: Example outputs included but may not have been limited to “667vle” or “L67vle.”

Current Update: 04/03/2026 17:20:00 AM –Microsoft has investigated a problem in which users’ Copilot rewrite function outputs were incorrect or showed unexpected text in Outlook on the web and desktop apps, and we confirmed that service is now restored. We’ll provide additional information in a closure summary within the “History” section of the “Service health” dashboard shortly.

Scope of impact: Some external guest participants attempting to unmute their microphones, share their screen, or use their camera during recurring Microsoft Teams meetings while recording may be impacted. This information may be updated as our investigation continues.