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First Data  Account Updater Response Codes:



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