1. Go to https://developer.amazonservices.com.
2. Click the Sign up for MWS button.
3. Log into your Amazon seller account.
4. On the MWS registration page, click the button for “I want to give the developer access to my Amazon seller account with MWS.”
5. In the Developer's Name text box, type. “LA Software”
6. In the 'Developer Account Number' text box, type “4386-6161-9270”.
7. Click the Next button.
8. Accept the Amazon MWS License Agreements and click the Next button.
9. Copy your account identifiers (Seller ID, MWS Authorization Token, and Marketplace ID) as we need them in order to access your Amazon seller account programmatically.
10. Paste your account identifiers into an email and send it to us. It is also a good practice to print this page and save it in a safe place.
11. Please follow the instruction on the following link to acquire access and secret key