Office 365, Email, Exchange, Updates to shared calendars may not appear

When I add or update a meeting on a shared calendar, it does not display on the other calendar.

Technology Services has seen instances of cached shared calendars in Outlook on Windows causing undesired behavior.

The problem

Person A will open Person B's calendar and put a meeting on Person B's calendar.  When Person A views Person B's calendar the meeting is there, but it never actually appears on Person B's calendar.  This can cause missed meetings or double-booking.

The solution

Turning off the caching of shared folders in Outlook on Windows computers for Person A corrects this issue.

  1. In Outlook for Windows, go to the Tools or File menu and select Account Settings.
  2. Select your Exchange Account and press the Change button.
  3. Press the More settings button.
  4. Select the Advanced tab.
  5. Uncheck the Download shared folders option.
  6. Press OK until all options are saved.