We have this entirely reproducible problem, that we found a fix for:
We create a room calendar for very special use: to reserve a Car for college transport. We have two calendars for this purpose - Car1 and Car2. After creating the calendar as type room, the user with full OWNER rights could not open the calendar to add an appointment for the use of the car.
The permissions were correct - BECAUSE: The user could add the appointment with the web interface, or with Outlook 2011 from a Mac. The user could not, however, add the appointment from Outlook 2007 or 2010. Every time the user tried to click in the calendar to add the appointment they got a "you do not have permission to view Free/Busy information". Strange, since the user was the owner.
After lots of research and testing we found (at least I surmise) that Outlook 2007 and 2010 require a "view" into Free/Busy information that is not created by default. Since the "room" calendar is not owned, and is never opened, that view is not created. We were able to fix it by:
- Change the mailbox from "room" to "regular" - set-mailbox –identity car1 –type regular
- Change the password so I could login - set-mailbox -Identity car1 -Password (ConvertTo-SecureString -String "Xyz123!" -AsPlainText –Force)
- Create a new profile for Outlook 2010 to access the mailbox directly
- Open the mailbox in Outlook 2010
- Create and then delete a calendar item
- Force a server update (Send/Receive update folder)
- Log out
- Change the mailbox back to "room" - set-mailbox –identity car1 –type room
After these steps were completed - the user could add appointments to the calendar from Outlook 2010.
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