3811563 - Why is Air Choice not pricing in SAP Concur, is it because it is not a Full Participant in Sabre?

We are trying to book Air Choice in SAP Concur and, based on the inventory in native Sabre (GDS), B class shows seats, but Y shows 0. Is that the issue that won't allow SAP Concur to price? Because they are not a full GDS participant? We are seeing this message in SAP Concur:

If an airline is not a full participant in Sabre, and shows B space but not Y, SAP Concur will not price because of untrue inventory availability from the Reservation System (GDS). , KBA , CON-SRV-TRV-SBR , TwsSabre Test , CON-CA , Cross Applications , CON-SRV-TRV-ADM-LAN , View Airlines , Problem