Shared Calendar is Greyed Out

• Adding full access to a mailbox in intermedia wont allow for a delegated user to share the calendar
• You can share the calendar by accessing the mailbox owners account in OWA or adding the mailbox in outlook.
• Refer to this Link ( Granting Access to a Shared CalendarandHow to Share it)

• At the bottom of the page, select Calendar to go to Calendar.
• In Calendar, on the toolbar at the top of the page, select Share, and choose the calendar you want to share.
• Enter the name or email address of the person you want to share your calendar with.
• Choose how you want the person to use your calendar:

• Can view when I'm busy -  lets them see when you're busy but doesn't include details like the event location.
• Can view titles and locations - lets them see when you're busy, as well as the title and location of events.


• Can view - all details lets them see all the details of your events.
• Can edit - lets them edit your calendar.
  
• Delegate - lets them edit your calendar and share it with others.