The IHG CRS interface is a two way interface which not only downloads actual room reservations but uploads local changes and locally created reservations and allotments.
In the event you want to create a group reservation on IHG CRS, you need to manually create an allotment for that group in Amadeus - PMPRO with the same group code, in order to reduce the hotel availability with the rooms that are allocated to the group.
How to get here?
Choose the Allotments option in the reservations menu to create the group in Brilliant.
Available options
Please refer to the allotment section of the main Amadeus - PMPRO help file for a description of the allotment functionality.
Additional requirements
There is no 100% match between the IHG CRS group functionality and the Amadeus - PMPRO allotment functionality. This results in the following additional requirements for IHG CRS group reservations.