calendar delegate updates meeting with resource mailbox involved = double meeting

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Here is my situation:

We have 2 meeting rooms having their own calendar (resource mailbox).
Reply to meeting request for these rooms is set to automatic.

1 staff is the delegate for the boss' calendar (full permissions).
Same staff has the meeting room calendars in its outlook with reviewer permission.

Boss creates a meeting request from his ipad and adds the meeting room as an attendee (no room booking option in the ipad's calendar)

Delegate updates the newly created meeting, changes time for example, nothing else, and the result of this is the creation of an additional meeting in the meeting room calendar.

Any idea how to prevent that ?


AndyD_ [MVP]

This only happens when the original meeting was created from the Ipad?


I haven't checked all the possibilities but there seem to be some issues whenever a delegate update a meeting that has been created from a device that doesn't support resource scheduling.

The most common situation in our case is when the boss creates a meeting from his ipad or iphone and the delegate acting as a secretary updates the meeting.

But it also happens when the delegate creates a meeting, boss updates it, and delegate updates it again.

Gen Lin


What's your version of exchange server?

I tested this problem in my lab (Exchange 2010/2007, Windows mobile) and it cannot be reproduced. Could help me to confirm if the problem only happen when using Ipad/Iphone?



Exchange SP1 with rollup 10

I don't know about this problem with Windows Mobile but it does happen when using Ipad/Iphone


Anybody having a similar issue ?

Is it a normal behavior from Outlook ?

To recall:

The meeting is created by the boss, boss adds the resource as an attendee, resource automatically replies to boss and adds the meeting in its own calendar. So far no problem.

A day or two later, secretary receives an update about meeting time (by phone or email), secretary goes to boss's calendar (she's a delegate with editor permission), updates the meeting time and send the meeting update. The resource receives the update but instead of updating the time of the meeting, it creates a new meeting in its calendar resulting in a duplicated meeting.

Can't the resource figure it's the same meeting ?


I bring this topic up as I'm still looking forward to an answer.
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