Which refusal do you need to see?
Each one arrives in the response body, not as a transport error, and each one is read from a different field.
Your answers so far
- What are you testing next?
- What my code does when a payment is refused or comes back. Change
Choose one
What to build
What this means for PCI
This is guidance rather than a compliance determination. Which questionnaire you are eligible for depends on your full environment, so confirm it with your QSA or your acquirer before you rely on it.