Calendar Permissions in Exchange 2007

[KFass]

Hi guys

I have a user that can't enter a calendar entry, which is actually an invite input for a Exchange 2007 meeting room calendar in Outlook 2007.
The user keeps getting a pop stating that he doesn't have the required permissions.

He has the same permissions as the rest of the organisations users.

Can someone please help me with this one?

Cheers
KFass

 

[Zelandakh]

What are their permissions? What is the exact error? Is it in Outlook? Do they get the same error in OWA? How is Outlook configured to hook into the other / room mailbox? If you turn up the calendar diagnostics, do you get an event ID for the time of the edit?