Originally Posted by
djmp
I've tried this and put my AA EXP number in my BA reservation but no dice: no seat selection allowed (still says on check in). Any suggestions?
Are you travelling on your own? (I've found that if I've added my CX number on another site but it won't show on ba.com, I can "add FF number" for a travelling companion, and on the next screen it picks up my hidden CX no.)