Message

Element 'cbc:CertificateTypeCode' MUST contain value 'NA'.

Context
/ubl:OrderResponse/cac:OrderLine/cac:LineItem/cac:Item/cac:Certificate/cbc:CertificateTypeCode
Test
normalize-space(text()) = 'NA'
Usage
/ ubl:OrderResponse / cac:OrderLine / cac:LineItem / cac:Item / cac:Certificate / cbc:CertificateTypeCode