File on line and it’s there instantly if no slot required you should be able to go pretty much anytime.
Sorry, not always true. Just 'cos you've pressed 'SEND' on your device, it doesn't mean it's in the system. There is frequently a delay between the FPL sent by your software going to the host server, being processed, and the end result popping out at the departure ATSU.
HB
HB