Originally Posted by santana
I just checked checkmytrip.com, and it still only has my QFF #, and not my AA#. When I logon to aa.com, and enter my AA record locator (which I got from checkmytrip.com), it shows my flights, and my AA # is shown on my Passenger details section. I asked my travel agent about this and he said that AA doesn't use Amadeus which is used by checkmytrip.com, that's possibly why my AA# isn't showing up. My travel agent also said that he did not link my AA flights with my QFF#, he only linked my QF/BA/IY flights with my QFF#. That's the thing which checkmytrip.com, it doesn't show which FF# is linked to which flights. I guess I'll just double check during check in that they've got the correct FF# for that particular flight
IME, what your TA says is pretty much right. If you've asked AA to put your AA number in for your AA flights, it'll basically be done locally (to AA) and won't get queued back to Amadeus. I don't think it's necessarily a question of whether the airline concerned uses Amadeus, because even if you ask BA to do the same sort of thing, or to change a seat allocation, they sometimes just do it locally (to BA) so that it doesn't get queued back to the Amadeus record that is accessed by checkmytrip - even though the BA res system is now hosted by Amadeus.
Checking the BP on check-in is the best defence.