Resource mailboxes configured for direct booking aren’t automatically accepting meetings


Direct Booking has been deprecated in Outlook 2013 – Changes in Office 2013


Convert the (resource) mailbox from user to a room mailbox.

Useful resources:

How to Convert a Mailbox ?

How to Enable or Disable Automatic Booking on a Resource Mailbox

How to Upgrade Outlook Direct Booking Resource Mailboxes to Exchange 2007

Thanks & Regards

Rahul Thomas