Originally Posted by
mht_flyer
My best guess this is UA software issue, NOT US Airways problem as US Airways gets elite status directly from the UA computers.
The problem actually probably is on the US side, albeit a problem created by UA MP switching to OP #s.
The US side apparently has validation logic for what constitutes a UA MP #, and that validation logic is simple: 11 numeric digits. Hence the new "MP" #s don't work, because they're 8 alphanumeric characters.
If UA had kept 11-digit MP #s, there would have been no problem.
If US had updated their systems so that they allowed 8-character alphanumeric MP #s, there would have been no problem.
For a short time (I'm hoping we're talking several months vs. several weeks), the old UA MP # should work for situations like this where the partner doesn't accept OP #s as being Mileage Plus accounts.