Microsoft 365 Alert – Service Degradation – Microsoft Viva – Users may notice missing Microsoft Copilot impact trend data in the Microsoft Viva Insights portal – ONGOING

Announcements Arpan Das

10/11/2025 09:38:00 AM

NHSmail Reference: INC46676584

Microsoft Reference: MV1179108

Issue Status: ONGOING

Issue Description: Users may notice missing Microsoft Copilot impact trend data in the Microsoft Viva Insights portal.

More info: Impact is specific to the total email messages sent using Copilot trend data between Tuesday, July 1, 2025, and Tuesday, October 7, 2025.
This data doesn’t apply to Copilot Assisted Hours or Copilot Assisted Value so those reports are unaffected.

Current Update: 15/12/2025 08:30:00 AM – The backfill operation is progressing as expected and Microsoft anticipates it will complete on Tuesday, December 16, 2025. Once the remaining data has been processed, they’ll reach out to a subset of affected users to confirm the issue is resolved.

Scope of impact: All users accessing Copilot trend data in the Microsoft Viva Insights portal are affected.

Root cause: A change to event-based logic in data provided by Exchange Online contains a code error, preventing the Viva Insights service from accessing the relevant data, resulting in impact.

Next update by: Tuesday, December 16, 2025, at 11:00 PM UTC