Some users may see outdated activity data in Microsoft Teams usage reports

Title: Some users may see outdated activity data in Microsoft Teams usage reports User impact: Users have may seen outdated activity data in Microsoft Teams usage reports. Final status: We've confirmed after monitoring the backfill process that the Teams activity data is now up-to-date and the impact has been remediated. Scope of impact: This issue may have intermittently impacted some users who attempted to view activity data in Microsoft Teams usage reports. Start time: Thursday, July 23, 2026, at 12:00 AM UTC End time: Friday, August 21, 2026, at 3:00 PM UTC Root cause: An upstream data source unexpectedly encountered delays, which resulted in multiple usage reports being outdated. Next steps: - We're continuing our analysis of the upstream data source to understand what caused the delays so we can improve our service's resiliency to prevent similar issues from arising in the future. This is the final update for the event.

Title: Some users may see outdated activity data in Microsoft Teams usage reports User impact: Users may see outdated activity data in Microsoft Teams usage reports. Current status: Based on the progression of the backfill, we estimate additional time will be needed to complete it. We're continuing to monitor as it progresses to validate a finalized timeline to remediation. Scope of impact: This issue may intermittently impact some users attempting to view activity data in Microsoft Teams usage reports. This information may be updated as our investigation continues. Start time: Thursday, July 23, 2026, at 12:00 AM UTC Root cause: An upstream data source has unexpectedly encountered delays, which is resulting in multiple usage reports being outdated. Next update by: Friday, August 21, 2026, at 5:00 PM UTC

Title: Some users may see outdated activity data in Microsoft Teams usage reports User impact: Users may see outdated activity data in Microsoft Teams usage reports. Current status: We've validated that the backfill of delayed activity data for Microsoft Teams usage reports has completed through Thursday, August 13, 2026. We’re monitoring as the backfill progresses to validate a finalized timeline to remediation. Scope of impact: This issue may intermittently impact some users attempting to view activity data in Microsoft Teams usage reports. This information may be updated as our investigation continues. Start time: Thursday, July 23, 2026, at 12:00 AM UTC Root cause: An upstream data source has unexpectedly encountered delays, which is resulting in multiple usage reports being outdated. Next update by: Friday, August 21, 2026, at 1:00 AM UTC

Title: Some users may see outdated activity data in Microsoft Teams usage reports User impact: Users may see outdated activity data in Microsoft Teams usage reports. Current status: We’re continuing to monitor the backfill of delayed activity data for Microsoft Teams usage reports, which has completed through Wednesday, August 12, 2026. We expect the remaining backfill to be completed by our next scheduled update. Scope of impact: This issue may intermittently impact some users attempting to view activity data in Microsoft Teams usage reports. This information may be updated as our investigation continues. Start time: Thursday, July 23, 2026, at 12:00 AM UTC Root cause: An upstream data source has unexpectedly encountered delays, which is resulting in multiple usage reports being outdated. Next update by: Thursday, August 20, 2026, at 5:30 PM UTC

Title: Some users may see outdated activity data in Microsoft Teams usage reports User impact: Users may see outdated activity data in Microsoft Teams usage reports. Current status: We've remediated an additional impacted data source and are proceeding with completing a backfill of delayed activity data for Microsoft Teams usage reports. We aim to provide a timeline for the backfill to complete in our next scheduled update. Scope of impact: This issue may intermittently impact some users attempting to view activity data in Microsoft Teams usage reports. This information may be updated as our investigation continues. Start time: Thursday, July 23, 2026, at 12:00 AM UTC Root cause: An upstream data source has unexpectedly encountered delays, which is resulting in multiple usage reports being outdated. Next update by: Wednesday, August 19, 2026, at 5:30 PM UTC

Title: Some users may see outdated activity data in Microsoft Teams usage reports User impact: Users may see outdated activity data in Microsoft Teams usage reports. Current status: Our fix has completed its deployment, and data has been backfilled up to August 9. However, we've identified an additional impacted data source which needs to be remediated in order to complete the backfill. We're applying a fix to this data source to correct the issue and will continue to monitor as backlogged data is processed to ensure impact remediation. Scope of impact: This issue may intermittently impact some users attempting to view activity data in Microsoft Teams usage reports. This information may be updated as our investigation continues. Start time: Thursday, July 23, 2026, at 12:00 AM UTC Root cause: An upstream data source has unexpectedly encountered delays, which is resulting in multiple usage reports being outdated. Next update by: Tuesday, August 18, 2026, at 5:30 PM UTC

Title: Some users may see outdated activity data in Microsoft Teams usage reports User impact: Users may see outdated activity data in Microsoft Teams usage reports. Current status: We identified that an additional fix was needed to restore the upstream data source. We initiated the deployment of the fix and expect it to complete by August 17, 2026. Once the upstream data source is restored, we'll monitor the backfill of activity data to ensure it becomes up to date and that the impact is remediated. Scope of impact: This issue may intermittently impact some users attempting to view activity data in Microsoft Teams usage reports. This information may be updated as our investigation continues. Start time: Thursday, July 23, 2026, at 12:00 AM UTC Root cause: An upstream data source has unexpectedly encountered delays, which is resulting in multiple usage reports being outdated. Next update by: Monday, August 17, 2026, at 5:30 PM UTC

Title: Some users see outdated activity data in Microsoft Teams usage reports User impact: Users see outdated activity data in Microsoft Teams usage reports. Current status: While monitoring the progress of the backlog processing, we've identified another source of impact that is contributing to the reporting delay. We're analyzing this source to identify our most effective next steps. We anticipate that we'll be able to provide an updated timeline by our next scheduled reconvene. Scope of impact: This issue may intermittently impact some users attempting to view activity data in Microsoft Teams usage reports. This information may be updated as our investigation continues. Root cause: An upstream data source has unexpectedly encountered delays, which is resulting in multiple usage reports being outdated. Next update by: Friday, August 14, 2026, at 9:30 PM UTC

Title: Some users see outdated activity data in Microsoft Teams usage reports User impact: Users see outdated activity data in Microsoft Teams usage reports. Current status: We're continuing to monitor the service as the backlog of accumulated data is processed. We anticipate activity data will be fully up to date in Microsoft Teams usage reports by our next scheduled communications update. Scope of impact: This issue may intermittently impact some users attempting to view activity data in Microsoft Teams usage reports. This information may be updated as our investigation continues. Root cause: An upstream data source has unexpectedly encountered delays, which is resulting in multiple usage reports being outdated. Next update by: Thursday, August 13, 2026, at 9:30 PM UTC

Title: Some users may see outdated activity data in Microsoft Teams usage reports User impact: Users may see outdated activity data in Microsoft Teams usage reports. Current status: We've identified an upstream data source has unexpectedly encountered delays, which is resulting in multiple usage reports being outdated. We're repairing the upstream data source pipeline to address the upstream latency issue and can see that the report data is repopulating. We expect the processing of the data will take some time to backfill and we'll continue to monitor the progress to ensure all data becomes up to date. Scope of impact: This issue may intermittently impact some users attempting to view activity data in Microsoft Teams usage reports. This information may be updated as our investigation continues. Root cause: An upstream data source has unexpectedly encountered delays, which is resulting in multiple usage reports being outdated. Next update by: Wednesday, August 12, 2026, at 10:00 PM UTC