Extended Response Code

Indicates whether the transaction was approved or declined and the reason for the refusal. This field is alpha-numeric and has following format:

XYYYYYYYYYYY

Where X = 1, indicating that the origin of the response code was SiTef or = 2, indicating that the source of the response code was the Host (Authorizer)

YYYYYYYYYYY = is the response code with 3 to 11 digits