TM1314397: Microsoft Teams Service Health Incident (Service Restored)

[365 Service Alert]

Some users in Asia-Pacific may encounter issues with various Microsoft Teams features.                                                                                                                                                                                                                      

Some users in Asia-Pacific may encounter issues with various Microsoft Teams features ID: TM1314397 Issue type: Incident Status Service Restored Impacted services Microsoft Teams Details Title: Some users in Asia-Pacific may encounter issues with various Microsoft Teams features User impact: Users in Asia-Pacific may have encountered issues with various Microsoft Teams features. More info: Impacted scenarios included but weren't limited to: - Creating new group chats, 1:1s, Teams, channels or meetings - Adding members to existing meetings, chats or teams - Townhalls and events - Recordings - Inbound and Outbound Public Switched Telephone Network (PSTN) calls - Admin policy enforcements - Presence Final status: After an extended period of monitoring during peak Asia-Pacific business hours, we've confirmed through internal telemetry and external user reports that the issue is resolved. Increased CPU usage on our service, coupled with a reduced CPU capacity due to planned maintenance, degraded the service and caused impact to users. We will provide more information within our Post-Incident Report. Scope of impact: Impact was specific to some users in the Asia-Pacific region attempting to utilize various Microsoft Teams features. Start time: Monday, May 18, 2026, at 6:17 AM UTC End time: Monday, May 18, 2026, at 1:00 PM UTC Root cause: Increased CPU usage on our service, coupled with a reduced CPU capacity due to planned maintenance, caused degradation to the service, resulting in impact. Next steps: - We're performing a complete analysis of this incident to understand the underlying cause of the problem and develop corresponding defense-in-depth repair items. We'll provide a preliminary Post-Incident Report within two business days and a final Post-Incident Report within five business days. Is this message helpful? Did you find this email helpful? Yes No To customize what’s included in this email, who gets it, or to unsubscribe, set your Service health preferences. If you are receiving this email because your Admin added you as a recipient, please contact your Admin to unsubscribe. Privacy Statement Microsoft Corporation, One Microsoft Way, ​Redmond, WA 98052​