Amazon affiliate program is called Amazon Associates.
In the registration form, you need to enter your website URL, other profile information and specify your preferred Associates Store ID. This will be part of your Amazon associates ID.
Every time you log in to your Amazon affiliate account you can see your associate (affiliate) ID in the upper right corner:
Creators API
In our service, we use programmatic access to Amazon’s product database. But each call to this database has to be personalized. That's why you need to join the Amazon Creators API to your app and obtain your personal access keys.
Go to your Amazon associates account and in the main menu choose Tools > Creators API
Read more about Creators API registration.
Once you create you app, you will obtain app Credential ID and app Secret. These two keys work only together and can't be used separately.
Note: app Secret is available only when you create your app. For security reasons, Secret key cannot be retrieved later. Please make sure that you save both Associate ID and app Secret.
You will use these keys together with your Amazon associates ID in the Amazon Feeds generator in RSS Ground:
Saving Amazon credentials in RSS Ground account
You need your Amazon Associates ID and Creators app keys every time you generate new Amazon product feeds.
You can save your Amazon credentials in your RSS Ground account and avoid entering them manually over again
Go to the ACCOUNT - Default settings menu:
Add your Amazon credentials to the appropriate fields and press the Update button.