Unable to delete calendar invites on my Calendar App after macOS Sequoia update

I'm using Mac Sequoia and since the update my calendar from my Office 365 account appears as "this event was imported - read-only", which means I can't actually decline or delete any calendar invites. I can decline them on other platforms or devices (i.e Teams, Apple Watch or my iPhone), but even if I delete or decline an invite there, when I go back to Calendar app on Mac, the evenrs are still there. As a result, my days are absolutely full of events and meetings I won't attend, which makes organization a bit hard.

I didn't find any solution to this and it only happened after Mac Sequoia (I also have an Intel-based Mac and this problem doesn't happen there). Any suggestions? I tried disabling and re-enabling the account, no success.

[Re-Titled by Moderator]

MacBook Air, macOS 15.1

Posted on Oct 4, 2024 5:06 AM

Top-ranking reply

DTubbs

Level 1

20 points

Posted on Nov 15, 2024 11:15 AM

Update: The "This event was imported (read-only)" showing on ALL Calendar Events issue seems to have been related to Exchange email aliasing and which "account" Apple sees as "active" when I joined it to exchange. And not just having that email associated to your "me" contact card.

I removed the Exchange account a second time, re-added it using my "alias" as my username, then when clicking the SSO Sign in option using the actual username/password and events now show correctly. Events sent to "me" (aka the alias) now show 'correctly' and any previous 'phantoms' from Events sent to lists have also disappeared. The latter more likely due to deleting the calendar entirely though so I'll have to see the next time I receive a list invite to see whether that functions correctly or not (I suspect it will not).

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Unable to delete calendar invites on my Calendar App after macOS Sequoia update

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