1. Login Amazon Seller Central, open User Permission page（must be main account）

North America: https://sellercentral.amazon.com/apps/manage

Europe: https://sellercentral.amazon.co.uk/apps/manage

Japan: https://sellercentral-japan.amazon.com/apps/manage

Australia: https://sellercentral.amazon.com.au/apps/manage

2. Click "Authorize New Developer", fill in with follow info:

Developer Name: QMT

Developer ID: ↓

North America：5905-0151-5462

Europe：3665-3516-3001

Japan：0863-9722-4106

Australia: 9898-4407-2315

3. Tick MWS Agreement，and Click Next

4. Copy Seller ID and MWS Auth Token to the form