Usage and structureEdit
Although ASINs used to be unique worldwide, global expansion has changed things so that ASINs are only guaranteed unique within a marketplace.
The same product may be referred to by several ASINs though, and different national sites may use a different ASIN for the same product. In general, ASINs are unlikely to be different between the country sites specially if they are for a class of product where the ASIN is based on an externally defined and internationally consistent identifier, such as ISBN for books.
Each product sold on Amazon.com is given a unique ASIN. For books with 10-digit International Standard Book Number (ISBN), the ASIN and the ISBN are the same. The Kindle edition of a book will not use its ISBN as the ASIN, although the electronic version of a book may have its own ISBN. In most cases, it is possible to convert an ASIN to obtain a corresponding EAN code, also known as an International Article Number.
- ↑ "Amazon.ca Help: Product Identifiers". https://www.amazon.ca/gp/help/customer/display.html?nodeId=200576730. Retrieved 25 May 2011.
- ↑ "FAQ: ISBN-13 for Amazon Associates". https://affiliate-program.amazon.com/gp/associates/help/t5/a16. Retrieved 29 October 2014.
- ↑ "ASIN to EAN converter". erwinmayer.com. http://erwinmayer.com/labs/asin2ean/index.php.