Shared Calendar and tracking responses
 

I have setup a shared Department Calendar and have multiple users setup as
owners of the Calendar. They all use the Calendar to send invites for
meetings. However because nobody is using the Inbox to read the Meeting
Accept\Decline Messages the response tracking had 'none' for all the
invitees. I know a way to fix it will be to setup the Inbox so they can mark
the Accept\Decline messages as 'read' and then all the responses are shown.
Is there an automated way to accomplish this?