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Does the structure of "UNB" and "UNH" segments differs over different EDIFACT versions?

does any one know whether the structure of "UNB" and "UNH" differs between different EDIFACT versions?

Thanks!

Solution

  • it does change....but not much. actually, it is not tied to a directory, but a syntax version. eg: UNB+UNOA:2+ this value '2' here indicates syntax version 2. different syntax version can have different UNB/UNH. And indeed, for syntax version 4 quite some fields have been added.