It seems like the earlier users maintain some sync between themselves, but new users can't accurately access the calendar.Ĭomparing OWA and Outlook versions helped me realize that must be what's going on in our case. Any new user added to the calender will get a copy of the calendar in the state they were added to it, but then any new events will not sync to them after they've been added. So, in the current state, users who were granted access to the calendar before the user was removed are still able to use and sync the calendar. PROBLEM: New users who are added will see the appointments added to the calendar up to that point, but any new appointments added by any user will not be seen by the new user.
If the permissions is only Availability (free/busy) or Titles and Locations (limited details), then Outlook for Mac cannot currently view those calendars.
I'm seeing a similar problem in my organization.