Originally Posted by
pineteam
We also used to start APU at the Electric page but then it was changed to start it only when reaching Status page. Not sure why tho.
Actually APU start as said before comes after STATUS is completed when you refer to FCOM where it says "If available APU may be started". But normally in the simulator(Only place where it happens) nobody reads FCOM and you forget to start it. So most do it at elec page though not strictly an Airbus procedure.