A flight plan being established, could it be that there could be a relation between the fact that a flight plan has a SID a little different from that existing in the drop-down menu of the MCDU? for example: the plan notifies: OKAS3A as SID of LFPG and there is in the F-PLN of the MCDU only OKAS5A.
In this case, if we take the SID proposed by the F-PLN page of the MCDU, will the aircraft follow this path?