Users may not be able to access Microsoft Viva Glint

Timeline (UK time)

1. 29 Sep 2026, 00:22 BST ✓ Operational

   Title: Users may not be able to access Microsoft Viva Glint User impact: Users may have not been able to access Viva Glint. Final status: We determined that a combination of two simultaneous deployments led to a misconfiguration which resulted in this impact. We halted one of the responsible deployments and confirmed that this resolved the issue by monitoring service health data. Scope of impact: This event impacted any user attempting to access Viva Glint. Start time: Monday, September 28, 2026, at 9:15 PM UTC End time: Monday, September 28, 2026, at 10:29 PM UTC Root cause: A combination of two simultaneous deployments led to a misconfiguration which resulted in this impact. Next steps: - We're reviewing the responsible deployments to better understand what led to the error that resulted in impact and prevent similar future occurrences. This is the final update for the event.

2. 28 Sep 2026, 23:16 BST ✓ Operational

   Title: Users may not be able to access Microsoft Viva Glint User impact: Users may not be able to access Viva Glint. Current status: We're reviewing service logs to isolate the source of this impact and an expedient mitigation to restore service. Scope of impact: This event impacts any user attempting to access Viva Glint. This information may be updated as our investigation continues. Start time: Monday, September 28, 2026, at 9:15 PM UTC Next update by: Monday, September 28, 2026, at 11:30 PM UTC

3. 28 Sep 2026, 22:49 BST ✓ Operational

   Title: Users may not be able to access Microsoft Viva Glint User impact: Users may not be able to access Viva Glint. Current status: We're investigating a potential issue with Viva Glint and checking for impact to your organization. We'll provide an update within 30 minutes.