Troubleshooting – Exchange Room Not Receiving Meeting Requests

Issue

When scheduling a meeting in SharePoint using our Event Management or Employee Training Management and selecting an Exchange room, the room does not receive the appointment. In some cases, the meeting briefly appears on the room calendar and then disappears again.

Symptoms

• The room is selected as a required or optional attendee, but no booking is created

• The appointment flashes on the room calendar for a few seconds and is then removed

• The organizer does not receive a clear error message

Possible Causes

This behavior is typically caused by one of the following:

1. Room calendar conflict

   • The room is already booked for the requested time

   • The room mailbox is configured to automatically decline conflicting requests

2. Room mailbox booking restrictions
   Default Exchange room settings may prevent the booking if:

   • The meeting is scheduled more than 180 days in advance, or

   • The meeting duration exceeds 24 hours

   When these limits are exceeded, the room mailbox will automatically decline the request, which can cause the appointment to disappear shortly after being created.

Resolution

End users cannot change room mailbox settings themselves.

To resolve this issue, the user must contact their System Administrator and request a review or update of the room mailbox configuration. The administrator may need to:

• Adjust the booking window (maximum number of days in advance)

• Increase the maximum meeting duration

• Review conflict handling and auto-processing settings for the room mailbox

 

Additional Notes

• These settings are managed centrally in Exchange and may vary by organization

• Changes typically apply immediately after being saved