EDIFACT UNA segment: service string advice.

The UNA segment is optional and defines the delimiter characters used in the interchange. If absent, the default delimiters apply: + for element separator, : for sub-element separator, . for decimal notation, ? for release character, space for reserved, ' for segment terminator. UNA:+.? ' is the standard default UNA.

Tag
UNA
Full name
Service String Advice
Part of the message
Interchange envelope

A UNA segment, explained

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  1. UNA:+.? '
    UNAService string advice

    Declares the delimiters used in this interchange.

    UNA
    Service string advice
Questions

UNA segment FAQ

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What is the UNA segment in EDIFACT?

UNA is the Service String Advice segment. The UNA segment is optional and defines the delimiter characters used in the interchange. If absent, the default delimiters apply: + for element separator, : for sub-element separator, . for decimal notation, ? for release character, space for reserved, ' for segment terminator. UNA:+.? ' is the standard default UNA.

Where does UNA appear in an EDIFACT message?

UNA belongs to the interchange envelope part of a message, alongside UNB.

How do I read a UNA segment in my own message?

Paste the message into the free CleanEDI explainer. It breaks every UNA segment into its elements, translates the codes and shows the JSON and XML your system would receive. Nothing you paste leaves your browser.

Related segments in interchange envelope

UNBInterchange Header