Strange issue with a users meeting turning into a appointment.

Question

So we have a user that is administrative assistant to many executives.
Today they created a meeting today and invited a few people. (for whatever reason, the user has themself as a shared calendar. Not sure if they created the meeting under their own shared calendar for themself or not)
sometime later they decided to add another user to the meeting, but the meeting no longer had attendees and turned into an  ppointment instead.
The previous attendees still have their meetings with all the correct info(minus the user they tried to add)
Also when checking the OWA vs the CLIENT,  you can see the sent email/invite in Outlook 2011 (yes its a mac they're using) in the Sent folder.  However, it was not in the Sent folder in OWA, and instead it was in the trash.   The one in the
trash in OWA however, instead of containing the original users as the attendees, contained the New user they were trying to add.(all based on the time the original invites were sent out)   The first invite was sent out @ 1:30pm while the new user invite
was (a completely different meeting invite due to the original not being there as a meeting) was sent out at 2:30pm.
Is there any way to sort of monitor or track this sort of transacation?  A few users in question always seem to have these sort of strange issues.

Answer 1

Hi,
According to your description, I understand that:
1. There is a delegate set for several managers.
2. The delegate created a meeting with some attendees for a manager and all attendees received it successful in Calendar.
3. When the delegate sent a meeting updates, the attendees in organizer’s calendar were missing and there is no updates in attendees’ calendar.
Is it right? If I misunderstand, please point it out.
Please check whether there are any mobile devices used in receiving or accepting the meetings. Please confirm whether all attendees in organizer’s calendar are also missing in OWA. we can stop using any mobile devices and try creating new meeting then sending
updates in OWA to try whether the issue persists.
Additionally, please refer to the following articles for more information about Best practice when when using the Outlook Calendar:
http://office.microsoft.com/en-us/outlook-help/best-practices-when-using-the-outlook-calendar-HA104004449.aspx
http://support.microsoft.com/kb/899704/en-us
Thanks,
Winnie Liang
TechNet Community Support