How to create a test Amazon account?

You can create test buyer Amazon accounts to test your integration in Sandbox.
These accounts will be pre-loaded with test payment instruments and a set of shipping addresses. You can edit the test buyer account properties (except for the payment instruments) to help simulate various purchase scenarios.

Step 1

Select the «Integration» → «Test Accounts» item from the left-top menu:

Step 2

Press the «Create a new test account» button:

Step 3

You will see the «Create a test account» form.

  1. Fill the «Login Settings» section.
  • Select some addresses in the «Shipping Addresses» section.
  • Press the «Create account» button

https://payments.amazon.com/documentation/lpwa/201956330

See also: