Raw acquirer responses
Visa, Master Card, American Express ...
A successful payment request (HTTP status code 200/OK) doesn't automatically mean the payment was successful. The transaction can be refused or cancelled for some reason. When this happens, the response includes a resultCode of refused or Cancelled with a refusalReason field explaining why the transaction didn't succeed. The refusal reason is primarily based on the authorisation response code we receive from the issuer or card scheme, known as 'raw acquirer response'.
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