Kindle paperwhite

I have epub with KDP and it works fine with kindle app.

But on kindle paperwhite it says the

“unavailable for download”

"The item not compatible with this device’

What should I do for the epub to be compatible with kindle paperwhite.

You will need to convert the EPUB file to a kindle compatible file format (mobi or azw3). You should be able to do this with free software like Calibre or Kindle Previewer.

@SteelWagstaff Thank you…