Message

Element 'cbc:UUID' MUST be provided with cbc:DocumentTypeCode.

Context
/ubl:ApplicationResponse/cac:DocumentResponse/cac:DocumentReference
Test
count(cbc:UUID) = count(cbc:DocumentTypeCode)
Usage
/ ubl:ApplicationResponse / cac:DocumentResponse / cac:DocumentReference
/ ubl:ApplicationResponse / cac:DocumentResponse / cac:DocumentReference / cbc:DocumentTypeCode