I'm currently trying to integrate customer profiles with our back end system. I've mostly gotten everything working, but I'd like to test the scenario where the customer profile fails validation.

Well, I've previously been told that it's impossible to force the customer profile to fail validation in sandbox. So that means the only way I have to test the system is to generate a mock response that shows a customer failing validation.

The documentation says that validation results are returned in the validationDirectResponseList key, but it doesn't give any description whatsoever of what items are in the list. I need documentation about the validationDirectResponseList, and what each item in the list means. If no documentation exists, then how am I supposed to do this?