Message

DocumentReference (Despatch Line) SHALL contain a Document Type Code or a Document Type.

Context
cac:DespatchLine/cac:DocumentReference
Test
(cbc:DocumentTypeCode) or (cbc:DocumentType)
Usage
/ ubl:DespatchAdvice / cac:DespatchLine / cac:DocumentReference / cbc:DocumentTypeCode
/ ubl:DespatchAdvice / cac:DespatchLine / cac:DocumentReference / cbc:DocumentType