XCCC: You Cannot Book Physical and Virtual Conference Resources in the Same Request

When you attempt to book an online meeting request and you specify both a physical and a virtual conference room in the Resources dialog box, this procedure may generate the following error message in Microsoft Outlook 97 or later: When you use Exchange Conferencing Server to create a meeting request, if you put a physical conference room mailbox in either the Required or Optional box (create a new meeting request to view these boxes), you can successfully book this meeting online. However, the administrator cannot automatically accept the request; the administrator of the physical conference room mailbox must log on and manually accept the meeting request.

This behavior can occur because when you book an online conference meeting request, only the Resources dialog box of the meeting request can be used for direct booking mailboxes. For Exchange Conference Service meetings, the Resources dialog box is reconfigured to only accept Exchange Conferencing Resource mailboxes.

To work around this behavior, book the two resources for the conference separately.