Message

Attribute 'listID' MUST contain value 'UNCL8273'

Context
/ubl:Catalogue/cac:CatalogueLine/cac:Item/cac:HazardousItem/cbc:UNDGCode
Test
not(@listID) or @listID = 'UNCL8273'
Usage
/ ubl:Catalogue / cac:CatalogueLine / cac:Item / cac:HazardousItem / cbc:UNDGCode / @listID