Originally Posted by
Gnopps
Is it supposed to be selectable (for free/for a fee)? Anything I can do about it?
Comfort seats are supposed to come with a fee (see the Finnair website), unless you are Finnair Plus Gold or Platinum (or Oneworld equivalent).
If you are willing to pay, you should obtain the Finnair/Amadeus PNR for your flight (it should show on the AA reservation) and go to Finnair.com, or call the Finnair customer service.