on Just Publishing Advice:
A trap to avoid for new authors on Amazon Books
Publishing a new book is an exciting time for any author.
There are so many things you have to do, and it is sometimes easy to overlook a few important things.
When you publish different versions of your book, such as in Kindle ebook and paperback, you should always check your book sales page.
It is not unusual for Amazon to take quite some time on occasions to merge both versions. When you have separate sales pages, it is difficult for potential readers to find your book in their preferred format.
Another problem is that because you have two separate book sales pages with different URLs, it makes it impossible for you to promote your book with one link.