Expired Token: Amazon Marketplace Web Service (MWS)


Amazon Marketplace Web Service (Amazon MWS) is an integrated web service API which allows Amazon sellers to exchange data, such as listings, reports, orders, payments, etc. By using Amazon MWS, you can build applications for linking your Amazon seller account with other e-commerce platforms, as well as enjoy the many benefits of Amazon’s advanced systems.

Amazon MWS provides extensive useful features, such as intelligent inventory/order/report management, creation of inbound shipments, order fulfillment, and a class-leading tracking/managing outbound shipping process.

Solid Commerce

Solid Commerce, something I use daily, is a multichannel order & inventory management software that provides a user/company with a wide range of advantages. Our company uses it to sell, manage, and track our e-commerce business on marketplaces such as eBay, Amazon, Sears, Newegg, and more.

Amazon MWS and Solid Commerce work as a pair to offer a selling platform which is highly customizable, smart, and scalable; however, like any web service, the two programs must be able to communicate.

The Issue

Recently, I was informed that there was an issue with the interaction between Amazon and Solid Commerce, which led to a few missed orders; apart from the initial heart attack, I quickly located the problem (expired token) and found the solution (enabling a new token). Simple enough. All orders that we didn’t ship due to the error were manually taking care of, so everything worked out in the end.

While it is always a great feeling to solve a problem, if you fail to document how you found the solution, the work isn’t necessarily complete. So, I wanted to quickly summarize the steps I took to both verify that the issue was with expired tokens and how to reauthenticate them.

How To

  1. Navigate to Solid Commerce. ChannelsManager.com
  2. Hover over the Marketplaces tab at the top of the screen, then select Sales Channels Connections.
  3. Here, you will see all of the marketplaces you may use, such as Amazon CA/US, eBay, Newegg, etc.
  4. For Amazon US (what we had the issue with), select Amazon US.
  5. This screen holds essential data you may have to use after you get into Amazon’s site (I stored it in a Notepad).
  6. On the left side of the screen, select “CLICK HERE” in the following image:


  1. Once you are in Amazon Seller Central (and you ensure you are in the correct store (brand/country), scroll down until you see Third-Party Developer and Apps, then, select Visit Manage Your Apps.
  2. Here, you will see all of the tokens used for Amazon US. If any are expired, merely select enable at the right of the screen. Note: That screen on step 6 shows your MWS access token if you need it to verify the screen on Amazon.

By creating a tutorial of the steps I took in solving a problem which very well may happen again, I can ensure that the next employee who runs into this issue fixes the problem the right way, and quickly.


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