Hi @Matt Osada,
Thank you for reaching out to Microsoft Q&A Forum.
On Outlook for Mac, deleted calendar items often do NOT visibly appear in the Deleted Items / Trash folder, even though deleted emails do. This is a platform limitation and differs from Outlook for Windows.
If your calendar is synced to Microsoft 365, Exchange, or Outlook.com, deleted calendar events are retained on the server. However, Outlook for Mac may not display these items, even though they still exist. In many cases, the deleted events are visible and recoverable through Outlook on the web instead.
What you can try:
- Sign in to Outlook on the Web
- Open Calendar
- Navigate to Deleted Items
- Locate the event and restore it
The web version of Outlook often shows recoverable calendar items that are not visible in Outlook for Mac.
However, if your calendar is stored locally, this means the calendar was not synced to an online account, then:
- Events are stored only on your Mac
- Outlook for Mac does not maintain a recoverable items folder for local calendars
- Once deleted, the event cannot be restored from Outlook itself.
Outlook for Mac stores local calendar data (especially “On My Computer” items) in a database. When macOS updates, sometimes this database can be affected. Here’s how to check for previous versions:
- Close Outlook completely
- Open Finder, then go to: ~/Library/Group Containers/UBF8T346G9.Office/Outlook/Outlook 15 Profiles/Main Profile/Data/
- Look for files like Outlook.sqlite or Calendar.sqlite.
- Check if there are any backup copies, or use Time Machine, if enabled, to restore a version from before the OS update. (Note: If Time Machine is enabled on your Mac, this is the best chance to recover the lost data.)
Since this limitation clearly impacts your workflow, I highly recommend submitting a feature suggestion directly to the Outlook team through the Feedback Hub in Outlook (go to Help > Feedback) or you can submit your feedback directly to Outlook · Community, where our product development team can know your requirements and ideas for product improvements. The team actively monitors user input, and many improvements have been made based on community suggestions.
Note: As Microsoft Community moderators, please note that we are not involved in product design decisions and do not have direct access to the development roadmap, we want to assure you that your feedback has been acknowledged and is valued.
In the meantime, if you see my replies bring helpful information, please kindly accept it as an answer and vote it up by your original account, which raised this question. Once marked, it will automatically pin to top. As other users will also search information in this community, your valuable vote up will definitely also help other users who have similar queries easily to find the correct channel and useful information more quickly.
I hope this provides enough clarity and helps you stay inform with your current situation.
Thank you for your patience and your understanding. If you have any questions or need further assistance, please feel free to share them in the comments on this post so I can continue to support you.
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