I have a user (365 Essentials) that created a meeting and added a room to it (Line 3). Somehow this user deleted the meeting from his calendar, did not cancel it, deleted it. He was the organizer so I have no idea how he did this. Then of course nobody was notified. Now this can be solved by sending an email to them all and having them remove the meeting from their calendars (they are internal and external) But I cannot figure out how to remove the meeting from the room mailbox. When I try I get:
You do not have sufficient permission to respond to this item.
I can open the meeting on the Line 3 mailbox and close it. But I cannot modify or delete it. Now, this meeting is locking up that time slot for that room and nobody can book it. I am the admin. I tried recovering the meeting from the organizers deleted folder to the calendar (where, by the way, he could not see it on the Line 3 calendar like everybody else could) but this did nothing at all.
How can I get rid of this meeting in Line 3 and free up the resource.