Originally Posted by
crystak
My colleague made a booking on AA metal. I can pull it up on the AA website using the record locator he gave me but I I would like to add it to my bookings on the BA website so I can use manage my booking.

BA does not have visibility into AA's reservations unless they are booked under a BA codeshare (and some minor exceptions, such as connecting flights).
So, no, you can't add a booking that BA has nothing to do with to BA's website; the joint business with AA/IB does not extend to this.