When creating a group booking, you may add a package rate that includes Guest Services. A specific condition of the included guest service will trigger different error messages. The conditions are as follows:
Not bookable: When the guest service is set to not bookable
Insufficient: When the requested guest service exceeds the availability quantity.
Sold Out (Out of Stock): When guest service stock is empty.
This article explains how the error message for each condition appears when creating a group booking.
Not Bookable
Insufficient