First Data Account Updater Response Codes:

Transaction Responses

Code	Message	UniPay Code
CONTAC	No Update	CC
NOMTCH	Not Matches	NN
UPDATE	OK	UA
EXPIRY	OK	UE
NOUPDT	No Update	UN
XX	Default or no response received.	XX
**11NS	Non-numeric account number	XX
**05NS	Bad card type code	XX
**12NS	Invalid Expiration Date	XX
**06NS	Bad check digit value	XX
**19NS	Merchant not registered	XX
**04NS	Invalid account number length	XX

Transaction Responses

Code	Message	UniPay Code
CONTAC	No Update	CC
NOMTCH	Not Matches	NN
UPDATE	OK	UA
EXPIRY	OK	UE
NOUPDT	No Update	UN
XX	Default or no response received.	XX
**11NS	Non-numeric account number	XX
**05NS	Bad card type code	XX
**12NS	Invalid Expiration Date	XX
**06NS	Bad check digit value	XX
**19NS	Merchant not registered	XX
**04NS	Invalid account number length	XX