Admins may not see new policies apply from the Cloud Policy service for devices running Win32 Microsoft 365 apps

Title: Admins may not see new policies apply from the Cloud Policy service for devices running Win32 Microsoft 365 apps User impact: Admins may have not seen new policies apply from the Cloud Policy service for devices running Win32 Microsoft 365 apps. More info: This event impacted devices attempting to apply new policies from Cloud Policy service for the affected builds: - Current Channel: Version 2604 (Build 19929.20164) - Monthly Enterprise Channel: Version 2604 (Build 19929.20162) - Monthly Enterprise Channel: Version 2603 (Build 19822.20240) - Monthly Enterprise Channel: Version 2602 (Build 19725.20320) - Semi-Annual Enterprise Channel: Version 2508 (Build 19127.20646) Policies from the Cloud Policy service applied to devices prior to receiving an affected build weren't impacted by this issue. Final status: We've completed the deployment of our fix to address the code issue, and confirmed through monitoring service health telemetry that the issue is resolved on the newest build version of the Cloud Policy service. We recommend affected admins update to the latest build version to have service functionality restored. Scope of impact: Any admin attempting to apply new policies from the Cloud Policy service to devices winning Win32 Microsoft 365 apps on any of the builds noted in the More Info section of this communication may have been impacted. Start time: Tuesday, May 12, 2026, at 10:00 PM UTC End time: Thursday, May 14, 2026, at 8:31 PM UTC Root cause: A code regression contained within a recent service update was causing impact. Next steps: - We're reviewing our update procedures to understand why impact to policy application wasn't caught during the testing phase. This will allow us to drive service improvements by proactively identifying similar issues in the future and improve our update testing processes. This is the final update for the event.

Title: Admins may not see new policies apply from the Cloud Policy service for devices running Win32 Microsoft 365 apps User impact: Admins may not see new policies apply from the Cloud Policy service for devices running Win32 Microsoft 365 apps. More info: This event impacts devices attempting to apply new policies from Cloud Policy service for the affected builds: - Current Channel: Version 2604 (Build 19929.20164) - Monthly Enterprise Channel: Version 2604 (Build 19929.20162) - Monthly Enterprise Channel: Version 2603 (Build 19822.20240) - Monthly Enterprise Channel: Version 2602 (Build 19725.20320) - Semi-Annual Enterprise Channel: Version 2508 (Build 19127.20646) Policies from the Cloud Policy service applied to devices prior to receiving an affected build are not impacted by this issue. Current status: Our service monitoring alerted us to an issue in which admins may not see new policies apply from the Cloud Policy service for devices running Win32 Microsoft 365 apps. We've identified that a code regression contained within a recent service update is causing the impact. We've developed a fix to address the code issue, which we're deploying to the affected environments. We'll aim to provide a timeline for the fix to complete deployment by our next scheduled communication update. Scope of impact: Any admin attempting to apply new policies from the Cloud Policy service to devices winning Win32 Microsoft 365 apps on any of the builds noted in the More Info section of this communication may be impacted. This section may be updated as our investigation continues. Start time: Tuesday, May 12, 2026, at 10:00 PM UTC Root cause: A code regression contained within a recent service update is causing impact. Next update by: Thursday, May 14, 2026, at 9:30 PM UTC

Title: Admins may not see new policies apply from the Cloud Policy service for devices running Win32 Microsoft 365 apps User impact: Admins may not see new policies apply from the Cloud Policy service for devices running Win32 Microsoft 365 apps. More info: This event impacts devices attempting to apply new policies from Cloud Policy service for the affected builds: - Current Channel: Version 2604 (Build 19929.20164) - Monthly Enterprise Channel: Version 2604 (Build 19929.20162) - Monthly Enterprise Channel: Version 2603 (Build 19822.20240) - Monthly Enterprise Channel: Version 2602 (Build 19725.20320) - Semi-Annual Enterprise Channel: Version 2508 (Build 19127.20646) Policies from the Cloud Policy service applied to devices prior to receiving an affected build are not impacted by this issue. Current status: We're investigating a potential issue with Win32 Microsoft 365 apps, and we're checking for impact to your organization. We'll provide an update within 30 minutes.