Service issues › MV1315266

Some users may see that some Viva Engage message posting operations are failing

Resolved Microsoft Viva Upload files/notes/documents advisory
Started
16 May 2026 22:00 UTC
Resolved
19 May 2026 00:05 UTC
Status
serviceRestored
Origin
microsoft

Timeline & resolution

19 May 2026 01:27 UTC · regular

Title: Some users may see that some Viva Engage message posting operations are failing User impact: Users may have see that some Viva Engage message posting operations were failing. Final status: We've determined that a recent deployment introduced a compatibility issue between message posting operations that resulted in impact. We've deployed a code change to resolve the compatibility issue, and we've confirmed with internal monitoring and testing that the issue is resolved. Scope of impact: Some users that performed Viva Engage message posting operations may have been affected. Start time: Saturday, May 16, 2026, at 10:00 PM UTC End time: Tuesday, May 19, 2026, at 12:05 AM UTC Root cause: A recent deployment introduced a compatibility issue between message posting operations that resulted in impact. Next steps: - We're further reviewing the recent deployment to understand how the compatibility issue was introduced, and to understand what prevented it from being detected in our update testing and validation procedures, which will allow us to prevent similar issues in future deployments.

19 May 2026 00:15 UTC · regular

Title: Some users may see that some Viva Engage message posting operations are failing User impact: Users may see that some Viva Engage message posting operations are failing. More info: Specifically, links created in Viva Engage containing images, videos, or links may not be shared and attached successfully when added to a message post. Additionally, message posts with only a GIF as content or subsequent attempts to edit messages may also fail. Current status: We're reviewing service side telemetry and whether any recent changes may have occurred which could be contributing to impact to help with identifying the root cause and formulating a fix. Scope of impact: Some users performing Viva Engage message posting operations may be affected. This information may be updated as our investigation continues. Next update by: Tuesday, May 19, 2026, at 1:30 AM UTC

18 May 2026 23:46 UTC · regular

Title: Some users may see that some Viva Engage message posting operations are failing User impact: Users may see that some Viva Engage message posting operations are failing. More info: Specifically, links created in Viva Engage containing images, videos, or links may not be shared and attached successfully when added to a message post. Additionally, message posts with only a GIF as content or subsequent attempts to edit messages may also fail. Current status: We're investigating a potential issue with Viva Engage and checking for impact to your organization. We'll provide an update within 30 minutes.

Source: Microsoft 365 service health.