Originally Posted by
arollins
Don't enter your AA frequent flyer #. After the fact, if you indeed use the ticket, then you can claim the miles on it, but for now, try not entering your FFN.
AA's software is far more sophisticated than that old trick. It looks at many factors, not the least of which are name, date of birth, credit card, address, IP address, and other factors. This is not to say that one could not create a separate identity and beat the system. But, leaving one's FFP number off will not do the trick.
If there are other carriers serving the market, OP may simply book one of those. Not only can't AA detect it, but it is not even a violation of the COC.