Finding your Marketplace Web Services (MWS) Credentials

Last updated about 7 years ago

For us to sync your FBA inventory into Zentail, we need to enter your MWS credentials into our integrations page. Below are step by step directions on how to find your MWS credentials and then how to enter them into Zentail. Please copy/paste the credentials into the appropriate field in Zentail to avoid any typos.
*Make sure you do not toggle into production mode before consulting your contact at Zentail :)


  1. Go to https://developer.amazonservices.com/ and click "Sign up for MWS" on the right side.
  2. Log in.
  3. Scroll down, Click "Authorize a Developer" on the left hand corner
  4. Choose: "I want to authorize an application to access my Amazon seller account with Amazon MWS"
  5. Use ZentailCommerce as the name and 1880-9649-5222 as the Application Developer's Account Number
  6. Go to your integrations page
  7. Make sure you are in the Amazon channel (left side of the screen), You must be in test mode, then enter your
    -Marketplace ID
    -Seller ID
    -Seller-Developer Auth Toke (generally very long)
  8. Click the "Save Settings" button on the bottom right of the page.
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