Microsoft Outage History

Impact Statement: Starting at 11:39 UTC on 24 April 2026, a platform issue resulted in provisioning, scaling, and connectivity issues for customers with Azure workloads hosted in the East US region. This issue initially affected one availability zone in East US. As traffic was automatically rerouted and shared services were involved, some customers in other availability zones may have also experienced an impact. Current Status: We detected this issue through our automated monitoring, which identified an unusual increase in failures within the services supporting virtual machine and virtual machine scale set operations in the East US region. We have taken steps to stabilize the affected services and address the underlying issue, while continuing the investigation to determine contributing factors. The next update will be shared within 60 minutes, or as events warrant.

User impact: Users are unable to search, chat or call users in Microsoft Teams Free. More info: Some new users who signed up during the impact window were incorrectly treated as already onboarded, causing onboarding and privacy consent screens to be skipped, their profiles to appear as “Unknown users” to others, and preventing them from being searchable or reliably reachable in chat. Current status: We've identified a recently deployed backend change is causing new Teams Free users to bypass required onboarding steps, leaving user profiles in an incomplete state. As a result, affected users can not be discovered, connect with others, or successfully complete chat request flows. We're analyzing all our available resources to identify a mitigation plan. Start time: Wednesday, April 08, 2026, at 6:45 AM UTC Next update by: Wednesday, April 29, 2026, at 3:30 PM UTC

User impact: Users are unable to search, chat or call users in Microsoft Teams Free. More info: Some new users who signed up during the impact window were incorrectly treated as already onboarded, causing onboarding and privacy consent screens to be skipped, their profiles to appear as “Unknown users” to others, and preventing them from being searchable or reliably reachable in chat. Current status: We're continuing to review various available mitigation strategies to determine the most effective method to relieve impact. As a workaround, affected users can sign into the mobile application and complete onboarding steps to make the desktop application function as expected. Start time: Wednesday, April 8, 2026, at 6:45 AM UTC Next update by: Wednesday, May 6, 2026, at 3:30 PM UTC

User impact: Users are unable to search, chat or call users in Microsoft Teams Free. Current status: We're validating a fix to address the underlying issue. Due to the complexity of the deployment, the validation is taking longer than initially anticipated. Once the fix is finalized, we’ll confirm the update in our internal test environment to ensure it doesn’t introduce any regression, before progressing with a gradual rollout to the affected environment. We'll share an estimated completion timeline when one becomes available. Start time: Wednesday, April 8, 2026, at 6:45 AM UTC Next update by: Wednesday, May 13, 2026, at 3:30 PM UTC

User impact: Users are unable to search, chat, or call users in Microsoft Teams Free. Current status: We've completed validations of our fix within our internal testing environment and have initiated a gradual rollout of our fix to affected users. Start time: Wednesday, April 08, 2026, at 6:45 AM UTC Next update by: Wednesday, May 13, 2026, at 5:30 PM UTC

User impact: Users are unable to search, chat, or call users in Microsoft Teams Free. Current status: We're monitoring our fix deployment to ensure it has saturated throughout the entire affected environment before validating this issue is resolved. Start time: Wednesday, April 08, 2026, at 6:45 AM UTC Next update by: Wednesday, May 20, 2026, at 5:30 PM UTC