4. You can’t book in multiple parks
You are unable to reserve fastpasses in multiple parks when making your initial FastPass+ selections. This means you can’t make two fastpasses in Magic Kingdom and your last fastpass in Epcot because you plan on hopping over. Your first three fastpasses need to be made for the same park, but you can book your next fastpass in a different park from the My Disney Experience app on your phone or in a FastPass+ kiosk in that park.