I'm trying to figure out how this happened. We use Exchange 2003, clients are Outlook 2003. A user set a recurring meeting in one of our conference rooms. She received the "resources booked successfully" dialog box, life was good.
She later went back into the meeting to extend it by half and hour. When she did this, she received no confirmation and the meeting time didn't change. She also got a message that it was conflicting with another appointment, but it wasn't. She then asked a calendar admin to extend the time for her, it didn't work. The meeting then vanished from the conference room calendar.
I got involved and tried to re-create the problem, I couldn't. I went to talk to the user, we checked the calendar, the meeting was now there but it was marked as tentative. I logged into the conference room account, checked the calendar and saw that an appointment from two weeks ago conflicted with the time. However, I thought that once something expired in a calendar, free/busy didn't come into play.
I had to accept the users new time, once I did that, everything worked and the user is happy.
My question is, why did Outlook/Exchange care about the conflict from two weeks ago? Is there an easy way to troubleshoot free/busy problems, if that's what caused the problem? We've had probably thousands of meetings scheduled and this is the first time this problem has been reported.