Mac OS Catalina Calendar not syncing with O365

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Mac OS Catalina Calendar not syncing with O365

So I've recently upgraded my MacBook to a new 13" pro version (love it so far). Anyway, as you'd expect everything synced over from the old MacBook including all my O365 settings for work. Except the calendar entries in O365 won't show in the new MacBooks calendar app.

They still show on the old one and sync to my iPhone and iPad fine. I can delete entries and move them from iCloud calendar to O365 calendar without issue on the old MacBook and phones etc. When entries are flagged as an iCloud calendar entry they show on the new MacBook, when I change them to the O365 calendar they disappear. You get the picture.

I'm loathed to delete the O365 account as it's synced with the other devices (which work) but I'm stumped as to what could be causing this when ALL of my other devices that sync with iCloud and O365 are working just fine.

Losing the will on this one...

Stu...

MacBook Pro 13”, macOS 10.15

Posted on Dec 9, 2019 6:51 AM

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Answer 1

rose_10

Community Specialist

Dec 12, 2019 6:25 AM in response to stuartgoble

Hi there, Stu.

I see that you're having problems using your Office 365 Calendar account with the Calendar application on your MacBook Pro on macOS Catalina. It still syncs to your iPhone and iPad, but the event entries on your Mac don't. I'm glad to help with this.

Add or delete calendar accounts on Mac -- Since an Exchange account isn't listed as a type of account that can automatically be used, contact your IT department for the information you need.

About using Exchange calendars on Mac -- This article explains the limitations when using your Exchange calendar account on your Mac.

Take care.

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Answer 2

Dec 20, 2019 5:15 AM in response to rose_10

Hi Sarah,

I'm having the same issue. I just deleted the whole 365 account and reinstalled it, E-Mail ist working fine, all E-Mails got synced. Calender is not. On the one side my own calender is not synced, just a few entries are. Two other calenders I have reading rights for will not sync at all. The links you supported are not helping.

Do you have any other idea, what could be the problem?

BR

Jesse

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Mac OS Catalina Calendar not syncing with O365

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