Technically, CRO and MS cannot link an AP rate reservation with a points reservation. But if you have the other reservation number noted on your reservation, and tell the front desk when you check in, you should be able to stay in the same room. But you must tell the desk when you check in. And make sure the same name is on both reservations. We had a points reservation with my husband's name and an AP reservation with my name on it and they were not set to be in the same room. But when we checked in, the front desk made it happen.