These days, Amazon Kindle Print (KDP) claims to do everything: both convert and publish eBooks and convert and publish your print paperback. However, never let an automatic system control the look of your new book: get a book designer on board. Or read the guide!
Amazon Kindle Print Publishing Guide
Minimum margins are not ideal margins. The ideal margin depends on what size your book will be, and how much white space it needs to look good. A book that is 8.5 x 5.5″ could be fine with 15 mm outside/18 mm inside margins.
Set up an Exclusive Kindle Deal
After you have set up your ebook and had the same price point for the past 30 days (or part thereof if new) then you decide whether it is to be ‘exclusive’ to Amazon Kindle — and eligible for 5-day promotions: free or countdown specials. Note: you do need to promote this on your socials and email to get some interest!
Set up Amazon Author
After publishing on Amazon and they have reviewed it as ‘published’, only then can you set up your Amazon Author Central: your biography and book feed. It also gives you sales data and allows for manual Editorial Reviews.