Format: ansLength: ..100Variable (LLVAR — 2-digit length prefix)
DE 104

Transaction Description

Data element
104
Format
ans
Length
..100
Encoding type
LLVAR
Bitmap
Secondary

What it is

Free-text description of the transaction, used in payment/transfer messages.

Specification reference

Defined in ISO 8583:1987 (base). Card networks publish their own dialect tables (Visa BASE I / V.I.P., Mastercard CIS) that refine formats, lengths, and — for private-use elements — the entire layout. Always confirm against the interface specification you implement.

Decode & build this element