Message
A message contains the data for a well-defined business function. For example, there are EDIFACT messages for purchase orders, invoices, and financial statements. An EDIFACT message is the equivalent of an ANSI X12 transaction.
The entire EDIFACT message structure is bounded by a UNH header segment and a UNT trailer segment. The user data segments of a message are organized into the following three sections:
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Header section Contains information that applies to the whole message. |
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Detail section Contains information that may be repeated and provides the details for the business function of the message. |
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Summary section Contains summary information for the message such as an invoice total amount. |