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Relevant to: faculty, staff, and students
This article contains information considered accurate at the time of publishing. Technology updates, changes in University security practices, policies and procedures may effect the information in this article - updates to articles are scheduled on a periodic basis and will address any required changes.
Introduction
The new Outlook for Windows (and the web-based engine behind it) does not yet fully support all shared calendar scenarios that worked in Classic Outlook.
Common reasons they’re not visible:
- Shared calendars added from Classic Outlook don’t migrate
- Calendars you previously opened via “Open Shared Calendar” often don’t carry over.
- Delegated vs shared permissions
- Calendars shared via delegation or older Exchange methods may not show.
- The new Outlook prefers modern sharing (Microsoft 365 sharing links).
Quick things to try (in order)
- Re-add the shared calendar inside the new Outlook
In New Outlook:
- Go to Calendar
- Click Add calendar
- Choose Add from directory or Add shared calendar
- Search for the person again and add it fresh
Even if it was already shared, this often makes it appear.
- Ask the owner to re-share the calendar
Have them:
- Right-click their calendar
- Sharing and permissions
- Share it again with your email
- Use Editor or Reviewer (Editor works more reliably)
Accept the invite in the new Outlook, not Classic.
- Check “Show all calendars”
Sometimes it’s there but hidden:
- In Calendar view, expand Shared calendars
- Make sure it’s checked/visible
- Temporary work around: switch back to Classic Outlook
If you need those calendars daily:
- Toggle New Outlook → Off
- Use Classic Outlook until Microsoft finishes feature parity