I have integrated Pay with Amazon payment module and getting error while redirect to amazon site.

Below is the error messages:

We're sorry! An error occurred when we tried to process your request. Rest assured, we're already working on the problem and expect to resolve it shortly.

Error Summary 400 Bad Request - The redirect URI you provided has not been white-listed for your application

Any help for appreciable..

I have integrated Pay with Amazon payment module and getting error while redirect to amazon site.

Below is the error messages:

We're sorry! An error occurred when we tried to process your request. Rest assured, we're already working on the problem and expect to resolve it shortly.

Error Summary 400 Bad Request - The redirect URI you provided has not been white-listed for your application