Old Jun 18, 18, 11:06 pm
  #11  
thorofare
 
Join Date: Aug 2015
Location: OR
Programs: AA EXP; HHonors Gold; IHG Platinum
Posts: 119
You can be logged into your BAEC account and still credit the miles to AA. During the booking process you have the option of choosing which BA partner airline to credit the miles to and then entering the respective program's FF number. I just booked a flight doing this two days ago. But as @LonghornSF says, save your boarding pass. I would also save my e-ticket receipt. Earlier this year when an IB flight segment didn't post my AA account, AA requested a copy of the e-ticket and boarding pass.
thorofare is offline