aviatorhi, it's simple once understood. AFM is approved manual- NOT to be used in flight. FCOM & QRH aren't approved but suplemental to AFM TO BE USED in flight according to airbus. The reasons behind are, firstly, to be able to sell the aircrafts in ''raw conditions'' ready for certification by national authorities, secondly, to escape liability. Once again it's written by lawyers not for pilots.
Back to the question 1 or 2?
P.S. consequently both AFM & FCOMs+ QRH are carried on board.