Some users may experience delays accessing audit logs through the Microsoft Purview Management API

Title: Some users may experience delays accessing audit logs through the Microsoft Purview Management API User impact: Users may have experienced delays accessing audit logs through the Microsoft Purview Management API. Title: Some users may experience delays accessing audit logs through the Microsoft Purview Management API User impact: Users may have experienced delays accessing audit logs through the Microsoft Purview Management API. More info: This issue specifically impacted Microsoft Purview users utilizing the Management Activity API and Search features to retrieve audit logs. Final status: Following an extended period of monitoring the service health telemetry after the completion of our configuration change, we’ve confirmed that impact has been remediated. Scope of impact: This issue may have potentially impacted a subset of Microsoft Purview users in the North America region who were utilizing the audit log feature of Microsoft Purview. Start time: Monday, September 14, 2026, at 6:00 AM UTC End time: Sunday, September 20, 2026, at 4:56 AM UTC Root cause: Frequent GC was causing the portion of service infrastructure responsible for facilitating user access to audit logs through the Microsoft Purview Management API to operate in a suboptimal state, which lead to increased request timeouts and was causing impact. Next steps: - We’re continuing to analyze how the Frequent GC issue manifested, as these actions will help us to clarify what actions we can take to ensure that similar impact doesn't occur in the future and to continue our ongoing mission to improve the resilience of our service for all Microsoft Purview users. This is the final update for the event.

Title: Some users may experience delays accessing audit logs through the Microsoft Purview Management API User impact: Users may have experienced delays accessing audit logs through the Microsoft Purview Management API. More info: This issue specifically impacted Microsoft Purview users utilizing the Management Activity API and Search features to retrieve audit logs. Final status: Following an extended period of monitoring the service health telemetry after the completion of our configuration change, we’ve confirmed that impact has been remediated. Scope of impact: This issue may have potentially impacted a subset of Microsoft Purview users in the North America region who were utilizing the audit log feature of Microsoft Purview. Start time: Monday, September 14, 2026, at 6:00 AM UTC End time: Sunday, September 20, 2026, at 4:56 AM UTC Root cause: Frequent GC was causing the portion of service infrastructure responsible for facilitating user access to audit logs through the Microsoft Purview Management API to operate in a suboptimal state, which lead to increased request timeouts and was causing impact. Next steps: - We’re continuing to analyze how the Frequent GC issue manifested, as these actions will help us to clarify what actions we can take to ensure that similar impact doesn't occur in the future and to continue our ongoing mission to improve the resilience of our service for all Microsoft Purview users. This is the final update for the event.

Title: Some users may experience delays accessing audit logs through the Microsoft Purview Management API User impact: Users may experience delays accessing audit logs through the Microsoft Purview Management API. More info: This issue is specifically impacting Microsoft Purview users utilizing the Management Activity API and Search features to retrieve audit logs. Current status: Our aforementioned configuration change is continuing to help reduce the impact as expected and we anticipate our change will fully resolve this issue by Sunday, September 20, 2026. Scope of impact: This issue may potentially impact a subset of Microsoft Purview users in the North America region utilizing the audit log feature of Microsoft Purview. This information may be updated as our investigation continues. Root cause: Frequent GC is causing the portion of service infrastructure responsible for facilitating user access to audit logs through the Microsoft Purview Management API to operate in a suboptimal state, leading to increased request timeouts and is causing impact. Next update by: Saturday, September 19, 2026, at 2:30 PM UTC

Title: Some users may experience delays accessing audit logs through the Microsoft Purview Management API User impact: Users may experience delays accessing audit logs through the Microsoft Purview Management API. More info: This issue is specifically impacting Microsoft Purview users utilizing the Management Activity API and Search features to retrieve audit logs. Current status: Our service health telemetry indicates that the configuration change we applied to a subset of the affected service infrastructure appears to be reducing the impact. We're continuing to monitor the efficacy of our change to confirm that it fully resolves the issue before we apply the change more broadly. Scope of impact: This issue may potentially impact a subset of Microsoft Purview users in the North America region utilizing the audit log feature of Microsoft Purview. This information may be updated as our investigation continues. Root cause: Frequent GC is causing the portion of service infrastructure responsible for facilitating user access to audit logs through the Microsoft Purview Management API to operate in a suboptimal state, leading to increased request timeouts and is causing impact. Next update by: Saturday, September 19, 2026, at 5:30 AM UTC

Title: Some users may experience delays accessing audit logs through the Microsoft Purview Management API User impact: Users may experience delays accessing audit logs through the Microsoft Purview Management API. More info: This issue is specifically impacting Microsoft Purview users utilizing the Management Activity API and Search features to retrieve audit logs. Current status: We've identified that frequent garbage collection (GC) is causing the portion of service infrastructure responsible for facilitating user access to audit logs through the Microsoft Purview Management API to operate in a suboptimal state, leading to increased request timeouts and is causing impact. We've applied a configuration change to reduce the GC frequency and are monitoring to confirm that it remediates the impact as expected. Scope of impact: This issue may potentially impact a subset of Microsoft Purview users in the North America region utilizing the audit log feature of Microsoft Purview. This information may be updated as our investigation continues. Root cause: Frequent GC is causing the portion of service infrastructure responsible for facilitating user access to audit logs through the Microsoft Purview Management API to operate in a suboptimal state, leading to increased request timeouts and is causing impact. Next update by: Friday, September 18, 2026, at 11:00 PM UTC

Title: Some users may experience delays accessing audit logs through the Microsoft Purview Management API User impact: Users may experience delays accessing audit logs through the Microsoft Purview Management API. More info: This issue is specifically impacting Microsoft Purview users utilizing the Management Activity API and Search features to retrieve audit logs. Current status: We're continuing to investigate the reason the impacting upstream service is timing out the requests while we implement configuration changes to the affected infrastructure that'll increase the number of requests that can be completed. Scope of impact: This issue may potentially impact a subset of Microsoft Purview users in the North America region utilizing the audit log feature of Microsoft Purview. This information may be updated as our investigation continues. Root cause: An upstream service that assists in the processing of audit log data in Microsoft Purview is causing delays. Next update by: Friday, September 18, 2026, at 9:00 PM UTC

Title: Some users may experience delays accessing audit logs through the Microsoft Purview Management API User impact: Users may experience delays accessing audit logs through the Microsoft Purview Management API. More info: This issue is specifically impacting Microsoft Purview users utilizing the Management Activity API and Search features to retrieve audit logs. Current status: We've determined that adjusting the rate at which request calls are processed has improved impact across portions of the affected infrastructure. However, some service components responsible for facilitating access to audit logs are continuing to experience increased timeouts and request failures. We're evaluating additional mitigation options, including rebalancing request traffic, while we continue investigating the upstream service responsible for processing audit log requests to determine why it's causing delays. Scope of impact: This issue may potentially impact a subset of Microsoft Purview users in the North America region utilizing the audit log feature of Microsoft Purview. This information may be updated as our investigation continues. Root cause: An upstream service that assists in the processing of audit log data in Microsoft Purview is causing delays. Next update by: Friday, September 18, 2026, at 7:30 PM UTC

Title: Some users may experience delays accessing audit logs through the Microsoft Purview Management API User impact: Users may experience delays accessing audit logs through the Microsoft Purview Management API. More info: This issue is specifically impacting Microsoft Purview users utilizing the Management Activity API and Search features to retrieve audit logs. Current status: We're continuing to assess mitigation options and are testing adjustments to improve the impact. We're monitoring the results to determine the most effective next steps. Scope of impact: This issue may potentially impact a subset of Microsoft Purview users in the North America region utilizing the audit log feature of Microsoft Purview. Start time: Monday, September 14, 2026, at 6:00 AM UTC Root cause: An upstream service that assists in the processing of audit log data in Microsoft Purview is causing delays. Next update by: Friday, September 18, 2026, at 5:30 PM UTC

Title: Some users may experience delays accessing audit logs through the Microsoft Purview Management API User impact: Users may experience delays accessing audit logs through the Microsoft Purview Management API. More info: This issue is specifically impacting Microsoft Purview users utilizing the Management Activity API and Search features to retrieve audit logs. Current status: We identified an issue with an upstream service that assists in the processing of audit log data in Microsoft Purview that is causing delays. We're working to address the upstream service issue and are allocating additional resources to help process the backlog of audit log data. Scope of impact: This issue may potentially impact a subset of Microsoft Purview users in the North America region utilizing the audit log feature of Microsoft Purview. Start time: Monday, September 14, 2026, at 6:00 AM UTC Root cause: An upstream service that assists in the processing of audit log data in Microsoft Purview is causing delays. Next update by: Friday, September 18, 2026, at 9:30 AM UTC