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"ISO 8583"

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ISO 8583 field 9 settlement conversion rate

ISO 8583

ISO 8583 Field Descriptions (F9)

DE 9, Conversion Rate, Settlement, carries the settlement conversion rate. It is an 8-digit numeric value: the first digit shows the decimal position from the right and the next 7 digits show the value.

Diagram explaining ISO 8583 field 11 (STAN)

ISO 8583

ISO 8583 Field Descriptions (F11)

DE 11 - SYSTEMS TRACE AUDIT NUMBER: A 6-digit unique numeric value generated by the message originator, enabling unique tracking of the transaction. How is STAN generated?

Table of ISO 8583 amount and currency field values for a sample transaction

ISO 8583

ISO 8583 Field Descriptions (F4, F5, F6, F49, F50, F51)

Fields F4, F5, F6, F49, F50, and F51 are the Amount and Currency fields sent in the authorization message. For example, for a 300 Euro transaction, the amount and currency information sent in these fields is as follows.

Diagram illustrating the ISO 8583 F7 transmission date and time field

ISO 8583

ISO 8583 Field Descriptions (F7)

F7 - TRANSMISSION DATE AND TIME: the field containing the moment the initiating party started the transaction. It is a 10-character numeric value in MMDDhhmmss format.

Diagram showing the structure of the ISO 8583 F54 Additional Amounts field

ISO 8583

ISO 8583 Field Descriptions (F54)

F54 - ADDITIONAL AMOUNTS is the additional amount field used in transactions. It can take different values depending on the transaction, such as carrying account balance information for balance inquiries.

Diagram illustrating the ISO 8583 F55 field structure for ICC system related data

ISO 8583

ISO 8583 Field Descriptions (F55)

F55 - INTEGRATED CIRCUIT CARD (ICC) SYSTEM RELATED DATA: the field where EMV data is written on chip cards. It consists of components such as Position, Private Data Subelements, PDS Tag, PDS Length, and PDS Value...

Diagram illustrating the structure of ISO 8583 field F43

ISO 8583

ISO 8583 Field Descriptions (F43)

F43 - CARD ACCEPTOR NAME AND LOCATION: the field that holds the name and location of the merchant/ATM where a card transaction took place. It is 40 characters long and alphanumeric.

Diagram explaining the MCC merchant category code field in ISO 8583 messages

ISO 8583

ISO 8583 Field Descriptions (F18)

F18-MERCHANT TYPE: This is the merchant's category code (MCC) information. It must contain values from the Mastercard or Visa MCC Code list. It is a 4-digit numeric value. For ATM transactions, MCC code 6011 should be sent. The role of MCC in authorization...

ISO 8583 field 35 Track 2 data

ISO 8583

ISO 8583 Field Descriptions (F35)

The card's Track 2 data is carried in this field. Track 2 data contains information such as the card number, expiry date and service code.

Example of RRN printed on a POS receipt used to trace ISO 8583 transactions

ISO 8583

ISO 8583 Field Descriptions (F37)

F37 - RETRIEVAL REFERENCE NUMBER: a 12-digit alphanumeric value generated by the Acquirer that initiates the transaction. It must be printed on the POS receipt or ATM slip. RRN is the reference number that allows a transaction to be located.

Diagram illustrating the structure of an ISO 8583 message field

ISO 8583

ISO 8583 Field Descriptions (F41)

F41 - CARD ACCEPTOR TERMINAL IDENTIFICATION: the terminal where a transaction took place. An 8-character alphanumeric value generated by the acquirer bank and assigned to the POS, managed as a unique terminal number at the acquirer.

Diagram illustrating the ISO 8583 F42 card acceptor identification code field

ISO 8583

ISO 8583 Field Descriptions (F42)

F42 - CARD ACCEPTOR IDENTIFICATION CODE: the merchant number of the terminal where a transaction took place. It is a 15-character alphanumeric value. Transactions are settled to the merchant's account based on the merchant number in this field.