Outlook 2007 getting error when books the resources

Question

Hi Guys,
I have the very interested problem here. We have two offices, A and B. Each office has a couple of meeting rooms as resources listed in GAL. When office A users tried to book office A meeting rooms from outlook 2007, they got the error message
You marked "xxxxx" as a resource. You cannot schedule a meeting with "xxxxx" because you don't have permission for that account. Either enter the name as a required or optional attendee or talk to your administrator about giving
you permission to schedule "xxxxx"
But when I login as the same user on another laptop which has outlook 2010 installed, there is no problems to book the same room at all. And when I tried to book the room in office B with outlook 2007, no problems. Comparing the settings of those two rooms
from exchange side, there is no difference. Same problems happened in all office A resources, but no effect on office B.
PS 1. Not try ask office B users book the room in office A yet. 
     2. tried the different ways to book the room from Outlook 2007, and same error message at the end.
Any idea to get it fixed?
Regards,
David

Answer 1

Hi,
Please note, it suggests to change the permission to Editor, that's because the resource mailbox requires Editor permissions for the delegate or manager that tries to modify the appointment items from the resource mailbox.
By the way, I found this:
http://community.spiceworks.com/topic/261812-exchange-2010-meeting-room-permissions
Try the suggestion mentioned in that thread:
Try creating a profile for one of the resource rooms you are having problems with. Then log into that profile with Outlook. In Outlook navigate to Tools -> Options -> Preferences -> Calendar Options -> Resource Scheduling -> If any of the
checkboxes are checked, uncheck them, then on one of the users who got the error, now try to book the resource and see if it still errors out.
Thanks,
Melon Chen
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