Fix Subscribed Calendars Not Showing in Teams Scheduling Assistant
Question details
Subscribed calendars from external providers like Google Calendar or GMX are not appearing as busy times in the Microsoft Teams Scheduling Assistant.
- Product
- Microsoft Teams
- Device & OS
- not provided
- Scenario
- A user is trying to view colleague availability in the Teams Scheduling Assistant, but external events from subscribed web calendars are missing.
- Observed behavior
- The Scheduling Assistant fails to display availability blocks for events originating from subscribed external web calendars, leading to potential scheduling conflicts.
Ensure you have access to your primary Microsoft 365 or Exchange account calendar, as Teams relies natively on these environments for availability data.
Migrate or Sync External Calendars to Microsoft Exchange
Since Teams Scheduling Assistant only reads native Exchange and Microsoft 365 availability, centralizing your events into your main account is the most effective workaround.
Currently, there is no standard Teams setting to force subscribed web calendars to appear as 'busy' in the Scheduling Assistant. The tool relies exclusively on supported Exchange and Microsoft 365 calendar availability.
Review your Google Calendar, GMX, or other third-party accounts to identify important recurring or one-off events that impact your working hours.
Copy crucial busy times directly into your main Microsoft 365 or Exchange calendar so that your colleagues can accurately see your availability.
Consider utilizing automation tools like Microsoft Power Automate to automatically copy new events from your external calendar to your Exchange calendar as 'busy' time slots.

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Frequently Asked Questions
Why doesn't my Google Calendar show up in the Teams Scheduling Assistant?
The Microsoft Teams Scheduling Assistant is designed to pull availability data directly from supported Exchange and native Microsoft 365 calendars. Subscribed web calendars are currently not supported for availability tracking.
Can I force Teams to read my subscribed web calendars?
No, there is currently no built-in administrative or user setting in Microsoft Teams that allows subscribed calendars to appear as busy time in the Scheduling Assistant.
Is there a workaround to show external events as busy in Teams?
The best workaround is to duplicate the external events into your primary Exchange calendar, or use third-party automation software to sync external calendar events as busy blocks into your Microsoft 365 account.




