Amazon Services
Amazon Marketplace Web Service (Amazon MWS) Documentation
Amazon MWS Documentation

Frequently Asked Questions

General

Q: What is Amazon MWS?

Amazon Marketplace Web Service (Amazon MWS) is an integrated Web service API that helps Amazon sellers to programmatically exchange data on listings, orders, payments, reports, and more. XML data integration with Amazon enables higher levels of selling automation, which helps sellers grow their business. Developers use Amazon MWS to build applications that help sellers increase selling efficiency, reduce labor requirements, and improve response time to customers.

Q: How much does it cost to use Amazon MWS?

There are no fees associated with Amazon MWS, but you must have a Professional selling plan to use it. For more information, see Selling plans in the Seller Central Help.

Q: How do I get help using Amazon MWS?

First, make sure you have read the documentation provided for each API section. If you need additional help, go to the Marketplace Web Service (Amazon MWS) Questions forum, search to find out if your question has already been resolved on the forum, or create a new forum thread. If you still require assistance, you can submit your question using the Contact Amazon MWS form.

Q: How do I register for Amazon MWS?
  1. Go to the User Permissions page in Seller Central and log into your Amazon selling account as the primary user.
  2. Under Looking for your MWS Developer Access Keys? click the here link and begin the registration workflow.
Q: I am a developer and I want to develop Amazon MWS applications for sellers. What should I do?

Only the owner of an Amazon selling account can authorize an application developer to access their selling account. You as the application developer must first register for Amazon MWS to get your Developer ID and developer credentials. Then, give your Developer ID to the seller who wants to use your services as a developer. When the seller authorizes you as a developer, they use your Developer ID to give you developer access to their selling account. The seller must also provide you with their Seller ID so you can make calls to Amazon MWS on their behalf. You can give an Amazon seller the following instructions to guide them through the process of authorizing you as a developer.

Instructions for a seller to authorize a developer to access their selling account

  1. Go to the Manage your apps page in Seller Central and log into your Amazon selling account as the primary user.
  2. Click the Authorize new developer button and follow the authorization workflow.
Q: Where do I find my identifiers and developer credentials?
  1. Go to the User Permissions page in Seller Central and log into your Amazon selling account as the primary user.
  2. Under Looking for your MWS Developer Access Keys? click the here button.

    The My Apps page appears, displaying your developer information.

Q: I am an Amazon seller and I want authorize a developer to access my selling account using Amazon MWS. What should I do?

Use the following instructions to authorize an application developer to access your selling account using Amazon MWS. The application developer should have given you their Developer ID.

  1. Go to the Manage your apps page in Seller Central and log into your Amazon selling account as the primary user.
  2. Click the Authorize new developer button and follow the authorization workflow.
Q: I am a seller who has authorized a developer to access my selling account. How do I revoke that authorization?

To revoke authorization for a developer to access your selling account:

  1. Go to the Manage your apps page in Seller Central and log into your Amazon selling account as the primary user.
  2. Click the Disable button for the application that you want to revoke access for.
Q: What is the Amazon MWS sunset policy?

When a new version of an Amazon Marketplace Web Service (Amazon MWS) API section is released, a sunset date for the previous version is set. The sunset date for the previous version is announced on the Marketplace Web Service (Amazon MWS) Questions forum and is also on the relevant API section page on the Amazon MWS portal.

Products

Q: Why do Products operations and notifications not return Buy Box values for used products outside of North America?

This is due to a known problem with the Products service. We do not have any estimate for when it will be fixed. We do not have a workaround.