Ah, but Kindles don’t support EPUB. Or did you mean to use the same compile technique for MOBI?
Well yes and no. KDP does accept ePub files on upload (they will convert it for you to a format Kindles can read), but you can also compile straight out of Scrivener using the “KF8” compile type, at the top. I’d recommend the latter along with some testing in their software/devices since this is an unusual approach.