How to find your Amazon Seller ID and MWS (Marketplace Web Service) information

To find your Amazon Seller ID and MWS (Marketplace Web Service) information, follow the steps below:

Step 1. Log into Amazon seller central

Step 2. Follow Settings - User Permissions  → Visit Manage Your Apps  → Authorize a Developer

or directly go Appstore - Manage Your Apps  → Authorize a Developer

Step 3. Enter relevant developer name and developer ID

Step 4. Check the checkbox and Next button

Step 5. Your seller ID and MWS authorization token will be displayed