I believe amazon is not that good for books.
Only sellers can run Amazon ad campaigns. If you only have a print edition which has been slurped in, you cannot run an ad campaign. You would have to create a seller store-front, sell the book through that, and then run a campaign as that seller and only for the things sold on that store-front.
You can read more here: https://kmhalpern.com/2019/04/08/why-not-to-use-amazon-ads-for-your-book/
Besides if you do have any questions give me a call: https://clarity.fm/joy-brotonath