Hi, I've been trying for almost a month to list some of our newly published books on Amazon. All the books are new, and we registered for ISBNs about a month ago. However, I keep encountering an ASIN conflict error when selecting "Paperback" or "Hardcover" as the binding attribute. Oddly, if I choose "Single Issue Magazine," the books are accepted, but I don’t want to mislead customers or authors with incorrect information.

Seller Central support offered some tips, but they weren’t relevant to this issue. Has anyone successfully managed to upload their books here and could share advice?