Some users may be unable to generate Microsoft Teams meeting attendance reports

Title: Some users may be unable to generate Microsoft Teams meeting attendance reports User impact: Users may have been unable to generate Microsoft Teams meeting attendance reports. More info: The affected meeting attendance reports were being generated internally, but due to the impact scenario, they weren't being provided to the user who requested it. Final status: We’ve completed regenerating reports for the remaining users and confirmed with our service telemetry that the issue is fully resolved. Scope of impact: Some users attempting to generate Microsoft Teams meeting attendance reports may have been affected by this event. Start time: Monday, August 10, 2026, at 4:00 PM UTC End time: Wednesday, August 12, 2026, at 8:15 PM UTC Root cause: A recent first-party app rollout introduced a misconfiguration that caused app component calls to fail, which had resulted in impact. Next steps: -We're investigating the impacting first-party app to pinpoint why this impact wasn't caught prior to rolling it out so that we can prevent the inability to generate Microsoft Teams meeting attendance reports in the future. This is the final update for the event.

Title: Some users may experience failures when generating Microsoft Teams meeting attendance reports User impact: Users may experience failures when generating Microsoft Teams meeting attendance reports. More info: The affected meeting attendance reports are being generated internally, but due to the impact scenario, they're not being provided to the user who requested it. Current status: We've regenerated reports for users in the Europe region. We anticipate that the reports for all remaining users will be regenerated by the time of our next scheduled communication update. Scope of impact: Some users may experience failures generating Microsoft Teams meeting attendance reports. This section may be updated as the investigation progresses. Start time: Monday, August 10, 2026, at 4:00 PM UTC Root cause: A recent first-party app rollout introduced a misconfiguration that caused app component calls to fail, resulting in impact. Next update by: Thursday, August 13, 2026, at 2:00 AM UTC

Title: Some users may experience failures when generating Microsoft Teams meeting attendance reports User impact: Users may experience failures when generating Microsoft Teams meeting attendance reports. More info: The affected meeting attendance reports are being generated internally, but due to the impact scenario, they're not being provided to the user who requested it. Current status: We anticipate missing meeting attendance reports to be fully processed for users in Europe by our next scheduled communications update. We're validating the timeline to restore reports for remaining affected regions and aim to provide this timeline in our next scheduled update. Scope of impact: Some users may experience failures generating Microsoft Teams meeting attendance reports. This section may be updated as the investigation progresses. Start time: Monday, August 10, 2026, at 4:00 PM UTC Root cause: A recent first-party app rollout introduced a misconfiguration that caused app component calls to fail, resulting in impact. Next update by: Wednesday, August 12, 2026, at 3:30 AM UTC

Title: Some users may experience failures when generating Microsoft Teams meeting attendance reports User impact: Users may experience failures when generating Microsoft Teams meeting attendance reports. More info: The affected meeting attendance reports are being generated internally, but due to the impact scenario, they're not being provided to the user who requested it. Current status: After implementing additional performance optimizations, we've validated that meeting attendance report availability has recovered. We're processing meeting attendance reports that were affected by this incident to fully remediate impact. Scope of impact: Some users may experience failures generating Microsoft Teams meeting attendance reports. This section may be updated as the investigation progresses. Start time: Monday, August 10, 2026, at 4:00 PM UTC Root cause: A recent first-party app rollout introduced a misconfiguration that caused app component calls to fail, resulting in impact. Next update by: Tuesday, August 11, 2026, at 10:30 PM UTC

Title: Some users may experience failures when generating Microsoft Teams meeting attendance reports User impact: Users may experience failures when generating Microsoft Teams meeting attendance reports. More info: The affected meeting attendance reports are being generated internally, but due to the impact scenario, they're not being provided to the user who requested it. Current status: As we continue to implement additional performance optimizations to recover meeting attendance report availability, we can confirm that availability is trending upwards but not fully recovered at this time. We're continuing to monitor availability as we validate what additional actions we can take to remediate impact. Scope of impact: Some users may experience failures generating Microsoft Teams meeting attendance reports. This section may be updated as the investigation progresses. Start time: Monday, August 10, 2026, at 4:00 PM UTC Root cause: A recent first-party app rollout introduced a misconfiguration that caused app component calls to fail, resulting in impact. Next update by: Tuesday, August 11, 2026, at 8:30 PM UTC

Title: Some users may experience failures when generating Microsoft Teams meeting attendance reports User impact: Users may experience failures when generating Microsoft Teams meeting attendance reports. More info: The affected meeting attendance reports are being generated internally, but due to the impact scenario, they're not being provided to the user who requested it. Current status: Our service monitors alerted us to ongoing impact to a subset of users who are experiencing failures when generating Microsoft Teams meeting attendance reports. We've isolated that a recent first-party app rollout introduced a misconfiguration that caused app component calls to fail, resulting in impact. We've rolled back the offending update and are monitoring service availability while we implement additional performance optimizations to fully remediate impact. Scope of impact: Some users may experience failures generating Microsoft Teams meeting attendance reports. This section may be updated as the investigation progresses. Start time: Monday, August 10, 2026, at 4:00 PM UTC Root cause: A recent first-party app rollout introduced a misconfiguration that caused app component calls to fail, resulting in impact. Next update by: Tuesday, August 11, 2026, at 7:30 PM UTC

Title: We're looking into a potential problem impacting Microsoft Teams User impact: We're checking for potential impact to your users. Current status: We're investigating a potential issue with Microsoft Teams and checking for impact to your organization. We'll provide an update within 30 minutes.