Unfortunately, kindle/KDP doesn't work at all with Zontracker.

Amazon made it impossible for book sales tracking, but we are very aware this is a recurring question and as soon as Amazon releases updates, we'll be right on top of it.

There's a small section on our Epic Guide that touches upon the subject of how to improve sales of books, with an overall FB strategy of growing a list and using pixeled link clicks to improve FB optimization, without using Zontracker.