Authorizing Sellzee for MWS

In order to access live data, Amazon requires you to have an MWS account and to authorize Sellzee as a developer within the Amazon MWS Developer permissions section of your Professional Seller account.

If you don't have a Seller account yet, you can setup a Professional Seller Account here. If you already have an Individual Seller account, you can upgrade in Seller Central at Settings > Account Info > Selling Plan > Modify Plan > Upgrade.

Without a Professional Seller Account, you'll pay an additional $0.99 per item fee on each item you sell. So once you’re selling more than 40 units per month it’s cheaper to pay the $39.99 per month to have a Professional Selling Account.


Login to your Amazon Seller account as the primary user and go to the User Permissions page.

If you haven't already signed up for MWS, click the Sign Up For MWS button and complete those steps first. If you've already completed this step, you'll see the Authorize a Developer button at the bottom of the Amazon MWS Developer Permissions table.


Click the Authorize a Developer button. On the screen that opens, enter the following information:

  • Developer's Name: Sellzee
  • Developer's Account Number: 2705-3280-7787


This will take you to a disclosure page. Read the text on the page and check the box next to "I understand", then click the Next button.


The next screen will show your account identifiers to use with Sellzee. Copy and paste the SellerID and MWS Auth Token into the corresponding fields on the Settings > Amazon MWS Settings screen in the Sellzee app.

Make sure there are no blank spaces at the beginning or end of your SellerID and MWS Auth Token!

🎓 Is your MWS account new? Keep in mind if your Amazon Professional Seller account is relatively new, it usually takes Amazon a couple of hours to complete the process of approving your MWS account. Give it a little time to complete approval and then re-try the process above.

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