PEPPOL-T019-R054
- Message
 A Party Identifier MUST have a scheme identifier attribute.
- Context
 cac:PartyIdentification/cbc:ID- Test
 ./@schemeID- Usage
 - 
                / t019:QualificationApplicationRequest / cac:TendererPartyQualification / cac:MainQualifyingParty / cac:Party / cac:PartyIdentification / cbc:ID