Amazon Announces the End of Support for ONIX 2.1 and moves to ONIX 3.0

After almost ten years of speculation, Amazon has announced the end date of support of ONIX 2.1 for physical book feeds.

EDItEUR welcomes the news that Amazon is ending its support for ONIX 2.1 for physical books next year. While it recognizes that this may cause issues for a small proportion of publishers using legacy product information management systems, the concentration of development effort solely on the latest ONIX 3.0 will benefit the industry as a whole. Almost all major off-the-shelf software systems already support ONIX 3.0, and publishers and retailers who use the newer version can make use of a richer range of metadata to boost discoverability and conversion. Amazon’s announcement of support for the ONIX Acknowledgement message also provides an opportunity for greater automation of the choreography of ONIX message exchanges.

Graham Bell, Executive Director, EDItEUR

Tricia McCraney, Virtusales Projects Consultant and recent recipient of the BISG Standards Bearer Award, estimates she has analyzed thousands of ONIX files from hundreds of publishers over the last two decades.


A passionate exponent of the benefits of ONIX 3.0, she lays out her top four ways, of the many ways version 3.0 is good for data senders (publishers and distributors) and recipients (retailers and trading partners) alike:

Virtusales customers tell us Amazon has just published a requirement to upgrade metadata feeds from ONIX 2.1 to ONIX 3.0, with a deadline of December 2020. The announcement was made through an alert on Vendor Central, where Amazon is providing tools to assist publishers with this process. Virtusales customers can produce ONIX 3.0 at the click of a button today, well ahead of the coming deadline. Many publishers are already enjoying the heightened discoverability and tradability of ONIX 3.0, but for those that are not the time to upgrade is nigh, and the sooner, the better. 

Graham Bell, Executive Director at EDItEUR, the international group coordinating the development of the standards infrastructure for electronic commerce in the book, ebook and serials sector, commented: