Users may be unable to send subscription email messages to external users in Power BI

Title: Users may be unable to send subscription email messages to external users in Power BI User impact: Users may be unable to send subscription email messages to external users in Power BI. Final status: Our fix completed its deployment, and we were able to confirm that the event has been resolved through service health telemetry. Scope of impact: Impact may have occurred for all users attempting to send subscription email messages to external users in Power BI. Start time: Thursday, January 29, 2026, at 6:45 PM UTC End time: Saturday, April 11, 2026, at 12:00 AM UTC Root cause: An influx of automated email traffic from Power BI subscriptions was resulting in impact to external subscription email delivery. Next steps:  - We're reviewing the influx of automated email traffic to better understand what led to the error that resulted in impact and prevent similar future occurrences. This is the final update for the event.

Title: Users may be unable to send subscription email messages to external users in Power BI User impact: Users may be unable to send subscription email messages to external users in Power BI. Current status: We've started the deployment of the fix, which we anticipate may be fully deployed by May 2026. We'll aim to provide an updated resolution timeline by our next scheduled update. Scope of impact: Impact may occur for all users attempting to send subscription email messages to external users in Power BI. Start time: Thursday, January 29, 2026, at 6:45 PM UTC Root cause: An influx of automated email traffic from Power BI subscriptions is resulting in impact to external subscription email delivery. Next update by: Monday, April 20, 2026, at 11:30 PM UTC

Title: Users may be unable to send subscription email messages to external users in Power BI User impact: Users may be unable to send subscription email messages to external users in Power BI. Current status: We're validating the efficacy of our developed code fix through additional testing within our testing environment prior to deployment, which we expect to begin by Wednesday, April 8, 2026. We’ll provide a timeline for full remediation as one becomes available. Scope of impact: Impact may occur for all users attempting to send subscription email messages to external users in Power BI. Start time: Thursday, January 29, 2026, at 6:45 PM UTC Root cause: An influx of automated email traffic from Power BI subscriptions is resulting in impact to external subscription email delivery. Next update by: Monday, April 6, 2026, at 11:30 PM UTC

Title: Users may be unable to send subscription emails to external users in Power BI User impact: Users may be unable to send subscription emails to external users in Power BI. Current status: We've developed our code fix and are testing its efficacy within our testing environment. We expect to begin deploying the fix before the time of our next update. Scope of impact: Impact may occur for all users attempting to send subscription emails to external users in Power BI. Start time: Thursday, January 29, 2026, at 6:45 PM UTC Root cause: An influx of automated email traffic from Power BI subscriptions is resulting in impact to external subscription email delivery. Next update by: Friday, March 27, 2026, at 11:30 PM UTC

Title: Users may be unable to send subscription emails to external users in Power BI User impact: Users may be unable to send subscription emails to external users in Power BI. Current status: Due to the complexity of the issue, the development of our code fix to restore subscription mail flow is taking an extended period of time to complete. We'll provide a timeline for its completion and deployment as one becomes available. Scope of impact: Impact may occur for all users attempting to send subscription emails to external users in Power BI. Start time: Thursday, January 29, 2026, at 6:45 PM UTC Root cause: An influx of automated email traffic from Power BI subscriptions is resulting in impact to external subscription email delivery. Next update by: Monday, March 23, 2026, at 11:30 PM UTC

Title: Users may be unable to send subscription emails to external users in Power BI User impact: Users may be unable to send subscription emails to external users in Power BI. Current status: The development of our code fix to restore subscription mail flow to external users is progressing. We're expecting an estimated timeline for the deployment of our fix, and the remediation of the impact will be available once our new solution has been tested and verified as a viable solution for remediating the impact. Scope of impact: Impact may occur for all users attempting to send subscription emails to external users in Power BI. Start time: Thursday, January 29, 2026, at 6:45 PM UTC Root cause: An influx of automated email traffic from Power BI subscriptions is resulting in impact to external subscription email delivery. Next update by: Monday, March 9, 2026, at 12:30 AM UTC

Title: Users may be unable to send subscription emails to external users in Power BI User impact: Users may be unable to send subscription emails to external users in Power BI. Current status: We're working to develop a code fix although we anticipate this process may take an extended period as we work to address the issue resulting in impact, and in tandem restore subscription mail flow to external users. We’ll provide a resolution timeline as more details become available to us. Scope of impact: Impact may occur for all users attempting to send subscription emails to external users in Power BI. Start time: Thursday, January 29, 2026, at 6:45 PM UTC Root cause: An influx of automated email traffic from Power BI subscriptions is resulting in impact to external subscription email delivery. Next update by: Tuesday, February 24, 2026, at 12:30 AM UTC

Title: Users may be unable to send subscription emails to external users in Power BI User impact: Users may be unable to send subscription emails to external users in Power BI. Current status: We've determined that the previous potential mitigation mentioned in our last update isn't a viable solution to deploy to all impacted users. We're further analyzing the influx of automated email traffic from Power BI subscriptions to help with identifying a new remediation plan to resolve the issue for all impacted users. Scope of impact: Impact may occur for all users attempting to send subscription emails to external users in Power BI. Start time: Thursday, January 29, 2026, at 6:45 PM UTC Root cause: An influx of automated email traffic from Power BI subscriptions resulted in impact to external subscription email delivery. Next update by: Tuesday, February 10, 2026, at 12:30 AM UTC

Title: Users may be unable to send subscription emails to external users in Power BI User impact: Users may be unable to send subscription emails to external users in Power BI. Current status: In addition to temporarily limiting subscription email to be only sent within the same Power BI environment, we’re testing another potential mitigation with a subset of affected users for validation as we continue to review options to resolve this problem for all affected users. Scope of impact: Impact may occur for all users attempting to send subscription emails to external users in Power BI. Start time: Thursday, January 29, 2026, at 6:45 PM UTC Root cause: An influx of automated email traffic from Power BI subscriptions resulted in impact to external subscription email delivery. Next update by: Tuesday, February 3, 2026, at 12:30 AM UTC

Title: Users may be unable to send subscription emails to external users in Power BI User impact: Users may be unable to send subscription emails to external users in Power BI. Current status: Our monitoring systems have identified impact where users may be unable to send subscription email to external users in Power BI. Our assessment has identified that an influx of automated email traffic from Power BI subscriptions is resulting in impact to external subscription email delivery. To remediate this, we’re temporarily limiting subscription email to be sent only within the same Power BI environment. Scope of impact: Impact may occur for all users attempting to send subscription emails to external users in Power BI. Start time: Thursday, January 29, 2026, at 6:45 PM UTC Root cause: An influx of automated email traffic from Power BI subscriptions resulted in impact to external subscription email delivery. Next update by: Saturday, January 31, 2026, at 12:30 AM UTC