ISO 8583 - Message format - Data elements

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Structured data parsed from Wikipedia. Data elements Data elements are the individual fields carrying the transaction information. There are up to 128 data elements specified in the original ISO 8583:1987 standard, and up to 192 data elements in later releases. The 1993 revision added new definitions, deleted some, while leaving the message format itself unchanged. While each data element has a specified meaning and format, the standard also includes some general purpose data elements and system or country specific data elements which vary enormously in use and form from implementation to implementation. Each data element is described in a standard format which defines the permitted content of the field (numeric, binary, etc.) and the field length (variable or fixed), according to the following table: Additionally, each field may be either fixed or variable length. If variable, the length of the field will be preceded by a length indicator. Examples Examples ISO defined data elements (ver 1987) ISO defined data elements (ver 1987) Processing code Processing code The following is a table specifying the message type and processing code for each transaction type.

Dataset

Data row number	Transaction	Message type	Processing code

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Data Columns

Name	Description	Data Type
Transaction		text
Message type		text
Processing code		text

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