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"F48"

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Diagram showing the structure of ISO 8583 field F48 (Additional Data)

ISO 8583

ISO 8583 Field Descriptions (F48)

DE 48 - ADDITIONAL DATA: these are additional data fields that can be used specifically for transactions. It is 255 characters long. Field F48 carries many pieces of information and is divided into PDS (Private Data Subelements).

Illustration of ISO 8583 message field layout used for field F47

ISO 8583

ISO 8583 Field Descriptions (F47)

F47-ADDITIONAL DATA (NATIONAL) is the field reserved for domestic additional information. In Turkey, it carries the BKM Unique ID in authorization transactions and data specific to KKPT (card-to-card transfer) transactions.