Can You Edit the Title of Your Book, Author Name or Other Information on KDP Once it Has Been Approved?
Amazon KDP does not allow you to change the book Title, Subtitle or the Author Name along with a few other things.
You can edit your Description and Keywords, along with some other things like changing Categories and pricing of your book.
To do these things, login to your Amazon KDP account and go to your bookshelf.
Find the book you want and click on the ellipsis (...) button on the right side of the book.
The first 3 choices in the menu are where you can edit information.