Message

Attribute 'listID' MUST be present.

Context
/ubl:DespatchAdvice/cac:DespatchLine/cac:Item/cac:HazardousItem/cbc:UNDGCode
Test
@listID
Usage
/ ubl:DespatchAdvice / cac:DespatchLine / cac:Item / cac:HazardousItem / cbc:UNDGCode