Microsoft 365 Alert – Service Degradation – Microsoft Viva – Users may be unable to access the Suite navigation bar within Microsoft Viva Engage – RESOLVED

Announcements Shagufta Naaz

04/03/2026 09:02:00 AM

NHSmail Reference: INC46763947

Microsoft Reference: MV1243442

Issue Status: RESOLVED

Issue Description: Users may be unable to access the Suite navigation bar within Microsoft Viva Engage.

Final Update: 04/03/2026 9:01:00 AM – Microsoft has verified after monitoring the service that the applied configuration update to correct the name mismatch in the allow list has successfully remediated the problem.

Scope of impact: Impact may have occurred for all users attempting to utilize the Suite navigation bar within Viva Engage.

Root cause: A recent Content Delivery Network (CDN) configuration change introduced an authentication component name mismatch in the allow list that prevented required navigation assets from loading within Viva Engage.

Next update by: Thursday, March 5, 2026, at 11:00 AM UTC