Originally Posted by
Repooc17
Ignore the warnings about basic economy ticket.
I am AS 75K = OWE, which I believe BA Gold also is of the same OneWorld tier.
As an OWE, with a basic economy ticket, you can still select economy seats at booking, just not main cabin extra (MCE). Your boarding group should be 2.
Just make sure your BA number is added to the AA ticket record, so your status can be recognized.
are you sure, on the AA forum there was a full agreement that OWE could select MainCabin
Extra seats.
AA has 24hrs free cancellation, so one way to be sure for the OP would be to book Basic Economy, add BAEC number to the booking and select seat, to confirm whereby Main Cabin Extra can be selected. If not, the booking can be cancelled within the first 24hrs and fully refunded, to book again Main Cabin (where I am sure, based on first hand experience, that Main cabin Extra can be selected).
all the other bene first (priority boarding, luggage allowance, lounge access, are definitive).