Amazon Marketplace Web Service (MWS) will no longer be available after March 31, 2024. All MWS developers must migrate to Selling Partner API (SP-API) to avoid service disruptions. Refer to the Migration Hub for more information.
Amazon Marketplace Web Service (Amazon MWS) uses language names based on ISO 639-1. The standard has 184 two-letter codes registered to cover the world's major languages or ISO 639 macrolanguages as of October 2015.
Amazon MWS does not use any of the three-letter codes available in ISO 639-2 or ISO 639-3.