When a new calendar is added, and you have been given access rights, it will need to be added to your Outlook Calendar

To add this calendar please go to the Calendars section of Outlook, right-click “Other Calendars” > Add Calendar > From Room List / Open Shared Calendar (depending on whether the calendar is shared or personal respectively):

Occasionally at this step you may find Outlook freezes and shows an error regarding an address book, if this happens wait 10 minutes and try again.

Double-click “CALENDAR_NAME” and select “OK”.

You should now be able to see the required calendar as part of your Outlook on this device.