SP API General FAQs

How do I use multiple redirect URIs?

When a selling partner signs into your website ( Step 3 in the Marketplace Appstore authorization workflow ), your application loads the Amazon callback URI into the browser and adds the redirect URI, the amazon_state parameter, and the state parameter.

To use multiple redirect URIs for your app, you must add the OAuth Redirect URIs when you register your app. Note that both the OAuth Login URI and the OAuth Redirect URI(s) values must be specified to successfully save them to your app registration. OAuth Redirect URI does not accept localhost: URIs.

When your app is configured with multiple redirect URIs, pass the redirect URI that you want to use as a query parameter in Step 3. If you do not include the redirect_uri parameter, the default is the first OAuth Redirect URI you specified when you registered your application.