Change FF Program for return
I purchased an upgrade through the bidding system for my JFK-AUH Flight. Its my understanding that this flight will not credit properly to other FF programs because it is coded as "X Class". If I credit to Etihad Guest for the outbound, can I change to ANA or another program for the return?
Also, what are the chances that ANA or another program would accept a boarding pass for credit with X class listed and give me the miles for business class? Thanks!