Admins may see incorrect Teams membership information for users in the Teams Admin Center

Title: Admins may see incorrect Teams membership information for users in the Teams Admin Center User impact: Admins may have seen incorrect Teams membership information for users in the Teams Admin Center. Final status: We reverted the recent service update containing the code issue and confirmed through telemetry that the impact was remediated. Scope of impact: This issue may have impacted any admins viewing Teams membership information for users in the Teams Admin Center. Start time: Monday, July 13, 2026, at 9:09 PM UTC End time: Wednesday, August 12, 2026, at 1:00 AM UTC Root cause: A code issue contained in a recent service update caused the display of incorrect Teams membership information in the Teams Admin Center. Next steps: We're working to improve our code review procedures to better prevent similar issues from occurring during future service update deployments. This is the final update for this event.

Title: Admins may see incorrect Teams membership information for users in the Teams Admin Center User impact: Admins may see incorrect Teams membership information for users in the Teams Admin Center. Current status: We identified that a code issue in a recent service update is causing the display of incorrect Teams membership information. We're working to revert the code changes to remediate the impact. Scope of impact: This issue may impact any admins viewing Teams membership information for users in the Teams Admin Center. Root cause: A code issue contained in a recent service update is causing the display of incorrect Teams membership information in the Teams Admin Center. Next update by: Wednesday, August 12, 2026, at 3:00 AM UTC

Title: Admins may see incorrect Teams membership information for users in the Teams Admin Center User impact: Admins may see incorrect Teams membership information for users in the Teams Admin Center. Current status: We're investigating a potential issue with the Microsoft Teams service and checking for impact to your organization. We'll provide an update within 30 minutes.