Responsys does not call Invoke URL

Hello community,

I'm creating an application, I followed all the steps in the documentation, but when requesting the service invocation, when I test the application's execution, Responsys returns an error in the step, and doesn't send the request to the invocation endpoint .

This happens in an app that is in the development stage for Responsys, and it also happens in an app that is in production like a CA.

When I test sending via AMS, I get the request on my endpoint. In Responsys, when the program runs, I don't get any error response from the endpoint, it's as if Responsys simply didn't send the request to my endpoint.