I calendar
I installed the Monterey update 12.6.2 yesterday. All my appointment dates in the calendar are gone. How can I restore Calendar? Macbook Pro.
MacBook Pro 13″, macOS 10.13
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faith185
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Community Specialist
Hi onpetree,
Welcome to Apple Support Communities. The events and calendars in the Calendar app on your Mac are linked to iCloud or third-party accounts. So, the best place to start would be to make sure that all calendars still appear when you go to the Calendar app, then click View > Show Calendar List. If you have recently made any changes such as removing an account, the events may have been connected to that account. You can add it back using this guidance from Add or delete calendars on Mac.
If you see that a calendar account is missing but still have email set up for it, you can also check to make sure that Calendar is enabled from Apple menu > System Settings > Internet Accounts > [Account name].
Best of luck.