Some admins may see Microsoft Teams usage report data discrepancies in the Microsoft 365 admin center

Title: Some admins may see Microsoft Teams usage report data discrepancies in the Microsoft 365 admin center User impact: Admins may have seen Microsoft Teams usage report data discrepancies in the Microsoft 365 admin center. More info: Admins may have seen the following inaccuracies in Microsoft Teams usage reports starting from August 25, 2026: - Teams Active Users displayed as 0 - Teams Chat Messages displayed as 0 - Teams Channel Messages displayed as 0 Final status: Our internal service telemetry has validated that the impacting error within the flow of service health telemetry data has been addressed, and that the impact has been resolved. Scope of impact: This event impacted some admins, who may have seen Microsoft Teams usage report data discrepancies in the Microsoft 365 admin center starting from August 25, 2026. Start time: Friday, August 28, 2026, at 12:00 AM UTC End time: Wednesday, September 16, 2026, at 7:20 PM UTC Root cause: An error occurred within the flow of service health telemetry data utilized by the service, resulting in this impact. Next steps: - We're further analyzing the isolated error within the flow of service health telemetry data to help us prevent similar impacting events in the future. This is the final update for the event.

Title: Some admins may see Microsoft Teams usage report data discrepancies in the Microsoft 365 admin center User impact: Admins may see Microsoft Teams usage report data discrepancies in the Microsoft 365 admin center. More info: Admins may see the following inaccuracies in Microsoft Teams usage reports starting from August 25, 2026: - Teams Active Users may display as 0 - Teams Chat Messages may display as 0 - Teams Channel Messages may display as 0 Current status: We're continuing to validate with affected users that this issue has been successfully remediated for all impacted regions. Scope of impact: This event impacts some admins, who may see Microsoft Teams usage report data discrepancies in the Microsoft 365 admin center starting from August 25, 2026. This section may be updated as the investigation progresses. Start time: Friday, August 28, 2026, at 12:00 AM UTC Root cause: An error occurred within the flow of service health telemetry data utilized by the service, resulting in this impact. Next update by: Thursday, September 17, 2026, at 11:00 PM UTC

Title: Some admins may see Microsoft Teams usage report data discrepancies in the Microsoft 365 admin center User impact: Admins may see Microsoft Teams usage report data discrepancies in the Microsoft 365 admin center. More info: Admins may see the following inaccuracies in Microsoft Teams usage reports starting from August 25, 2026: - Teams Active Users may display as 0 - Teams Chat Messages may display as 0 - Teams Channel Messages may display as 0 Current status: We've confirmed that the backfill has processed as expected and are reaching out to a portion of impacted users to verify that the issue has been remediated. Scope of impact: This event impacts some admins, who may see Microsoft Teams usage report data discrepancies in the Microsoft 365 admin center starting from August 25, 2026. This section may be updated as the investigation progresses. Start time: Friday, August 28, 2026, at 12:00 AM UTC Root cause: An error occurred within the flow of service health telemetry data utilized by the service, resulting in this impact. Next update by: Wednesday, September 16, 2026, at 8:30 PM UTC

Title: Some admins may see Microsoft Teams usage report data discrepancies in the Microsoft 365 admin center User impact: Admins may see Microsoft Teams usage report data discrepancies in the Microsoft 365 admin center. More info: Admins may see the following inaccuracies in Microsoft Teams usage reports starting from August 25, 2026: - Teams Active Users may display as 0 - Teams Chat Messages may display as 0 - Teams Channel Messages may display as 0 Current status: We're continuing to monitor the progress of the backfill processing as more time is needed to ensure its completion and confirm if impact is resolved. Scope of impact: This event impacts some admins, who may see Microsoft Teams usage report data discrepancies in the Microsoft 365 admin center starting from August 25, 2026. This section may be updated as the investigation progresses. Start time: Friday, August 28, 2026, at 12:00 AM UTC Root cause: An error occurred within the flow of service health telemetry data utilized by the service, resulting in this impact. Next update by: Wednesday, September 16, 2026, at 2:30 AM UTC

Title: Some admins may see Microsoft Teams usage report data discrepancies in the Microsoft 365 admin center User impact: Admins may see Microsoft Teams usage report data discrepancies in the Microsoft 365 admin center. More info: Admins may see the following inaccuracies in Microsoft Teams usage reports starting from August 25, 2026: - Teams Active Users may display as 0 - Teams Chat Messages may display as 0 - Teams Channel Messages may display as 0 Current status: The affected data backfill remains in progress and is taking longer than expected. We’re monitoring its progress and expect processing to complete to resolve the issue by our next scheduled update. Scope of impact: This event impacts some admins, who may see Microsoft Teams usage report data discrepancies in the Microsoft 365 admin center starting from August 25, 2026. This section may be updated as the investigation progresses. Start time: Friday, August 28, 2026, at 12:00 AM UTC Root cause: An error occurred within the flow of service health telemetry data utilized by the service, resulting in this impact. Next update by: Tuesday, September 15, 2026, at 2:30 AM UTC

Title: Some admins may see Microsoft Teams usage report data discrepancies in the Microsoft 365 admin center User impact: Admins may see Microsoft Teams usage report data discrepancies in the Microsoft 365 admin center. More info: Admins may see the following inaccuracies in Microsoft Teams usage reports starting from August 25, 2026: - Teams Active Users may display as 0 - Teams Chat Messages may display as 0 - Teams Channel Messages may display as 0 Current status: We’re continuing to backfill the affected data to fully remediate this event. Based on current progress, we anticipate this process will complete by our next scheduled update. Scope of impact: This event impacts some admins, who may see Microsoft Teams usage report data discrepancies in the Microsoft 365 admin center starting from August 25, 2026. This section may be updated as the investigation progresses. Start time: Friday, August 28, 2026, at 12:00 AM UTC Root cause: An error occurred within the flow of service health telemetry data utilized by the service, resulting in this impact. Next update by: Saturday, September 12, 2026, at 2:30 AM UTC

Title: Some admins may see Microsoft Teams usage report data discrepancies in the Microsoft 365 admin center User impact: Admins may see Microsoft Teams usage report data discrepancies in the Microsoft 365 admin center. More info: Admins may see the following inaccuracies in Microsoft Teams usage reports starting from August 25, 2026: - Teams Active Users may display as 0 - Teams Chat Messages may display as 0 - Teams Channel Messages may display as 0 Current status: We've determined that an error occurred within the flow of service health telemetry data utilized by the service, resulting in this impact. We've addressed the underlying issue and are currently in the process of backfilling the data to fully remediate this event. Scope of impact: This event impacts some admins, who may see Microsoft Teams usage report data discrepancies in the Microsoft 365 admin center starting from August 25, 2026. This section may be updated as the investigation progresses. Start time: Friday, August 28, 2026, at 12:00 AM UTC Root cause: An error occurred within the flow of service health telemetry data utilized by the service, resulting in this impact. Next update by: Friday, September 11, 2026, at 11:00 PM UTC

Title: Some admins may see Microsoft Teams usage report data discrepancies in the Microsoft 365 admin center User impact: Admins may see Microsoft Teams usage report data discrepancies in the Microsoft 365 admin center. More info: Admins may see the following inaccuracies in Microsoft Teams usage reports starting from August 25, 2026: - Teams Active Users may display as 0 - Teams Chat Messages may display as 0 - Teams Channel Messages may display as 0 Current status: We've received reports from a subset of admins noting inaccuracies or discrepancies in Microsoft Teams usage reports in the Microsoft 365 admin center starting from August 25, 2026. We're attempting to reproduce the issue to further our understanding of the current impact scenario and to determine our next troubleshooting steps. Scope of impact: This event impacts some admins, who may see Microsoft Teams usage report data discrepancies in the Microsoft 365 admin center starting from August 25, 2026. This section may be updated as the investigation progresses. Next update by: Thursday, September 10, 2026, at 11:00 PM UTC