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Amazon FPS provides an environment called the sandbox for testing your applications. In the sandbox you can try out your requests without incurring charges or making purchases. We recommend that you test all of your requests in the sandbox before exposing them on your web site.
The sandbox separate endpoints for the Amazon FPS API Co-Branded service API.
Amazon FPS API—https://fps.sandbox.amazonaws.com
Co-Branded service—https://authorize.payments-sandbox.amazon.com/cobranded-ui/actions/start
For information about getting a sandbox account, go to the Amazon Flexible Payments Service Getting Started Guide.
