Shared Calendar: Appointments disappearing from Outlook calendar

Occasional Visitor

We've recently migrated to O365, and since we've been experiencing appointments missing from Outlook calendar for one of our shared calendars. (This calendar is not a public folder; thus, it has a few users who have editing rights to it).

Any advice on how to approach this issue?

Thank you in advance.

3 Replies

@Corombi923 Did you figure out what was happening in the end?  I have multiple users who are seeing this across all of their shared calendars.


Each time they go into the calendar they get a different set of appointments.

@Corombi923 I too am seeing this behavior on some of our shared mailboxes. Any idea what's happening?

Maybe "Cache shared mailboxes" option?



Anyone ever get an Answer from Microsoft on this one?