I have a EX2003 running. When a user creates a appointment via outlook and then the attendee accepts it using OWA, then the OWA user can't sync it with his pocketpc running WM6. When he syncs, it says that some appointments can't be syncronized. There is no error code, just a message. If he accepts the appointment using outlook, then there is no problem syncronizing. Can anyone please help ?