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Users in Japan, Asia and Australia may be unable to access Cowork in the Microsoft Copilot 365 User Interface (UI)

Microsoft Copilot (Microsoft 365) CP1540672

Users in Japan, Asia and Australia may be unable to access Cowork in the Copilot User Interface (UI).

Status
Service degradation
Feature
General
Region
Asia Pacific
Started
Nov 6, 2026, 02:56 CET
Duration
2 h 9 min
Last update
Nov 6, 2026, 04:52 CET
Next update
Nov 6, 2026, 07:00 CET

Current status

While we've confirmed that the deployment has completed for users in the Japan region, who are now able to access Cowork through the Copilot interface, we've identified that the deployment is still ongoing for users in Asia and Australia. We've updated the Title, User Impact, More Info and Scope of Impact sections to reflect this. We anticipate that the deployments in Asia and Australia will complete by the time of our next scheduled update.

More info

When attempting to access Cowork, users in Japan, Australia, and Asia may be redirected to Copilot Chat instead.

Scope of impact

This issue may affect any user in Japan, Australia, and Asia attempting to access Cowork.

Root cause

A recent deployment introduced an issue where additional calls were delivered to multiple API endpoints, which caused our automated traffic management mechanisms to reduce request traffic flow which resulted in impact.

Timeline

Every update Microsoft posted for this issue, newest first.

  1. Nov 6, 2026, 04:51 CET

    While we've confirmed that the deployment has completed for users in the Japan region, who are now able to access Cowork through the Copilot interface, we've identified that the deployment is still ongoing for users in Asia and Australia. We've updated the Title, User Impact, More Info and Scope of Impact sections to reflect this. We anticipate that the deployments in Asia and Australia will complete by the time of our next scheduled update.

  2. Nov 6, 2026, 04:28 CET

    We're continuing to monitor the progress of our deployment as we proceed through the final required steps for full remediation.

  3. Nov 6, 2026, 03:11 CET

    We've received information that indicates the impact associated with CP1540142 persists for users in Japan. After additional analysis, we're expediting the deployment of our code change which will turn off automatic traffic management mechanisms that reduced traffic flow and resulted in impact.

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Source: Microsoft Graph, Service Communications API. This is the view of a Swiss Microsoft 365 tenant: services not licensed there are missing, and individual issues may affect your tenant differently. Microsoft names the region only in the issue text. The Switzerland view shows issues for Switzerland, for Europe in general and those without a region, but not issues that only name other countries such as Germany or the UK. This page is not provided by Microsoft.