Some users may be unable to load their calendar in the Microsoft Teams web app
Microsoft TeamsTM1536687
Users may be unable to load their calendar in the Microsoft Teams web app.
Status
Service degradation
Feature
Calendar
Region
Not specified (all regions)
Started
Nov 3, 2026, 11:58 CET
Duration
3 h 1 min
Last update
Nov 3, 2026, 12:24 CET
Next update
Nov 3, 2026, 19:30 CET
Current status
We’ve observed that the issue previously communicated under TM1527987 has not been fully resolved by the mitigation already implemented. We’re continuing to investigate the root cause and assess whether additional mitigation is needed to resolve the remaining impact.
More info
Affected users may experience longer loading times when accessing their calendars. Retrying may allow the calendar to load successfully.
Scope of impact
Impact is specific to some users attempting to load their calendar in the Microsoft Teams web app.
When Microsoft 365 goes down
The live overview shows the current state of every Microsoft 365 service, refreshed every minute from Microsoft Graph.
To see whether your own tenant is affected, check Service health in the Microsoft 365 admin center. Only a backup outside Microsoft protects against data loss, and only a tested break-glass account against locked-out admins. We set up both in fixed-scope sprints.
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.
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