Message

Attribute 'schemeID' MUST contain value 'National_Number'

Context
/espd:ESPDResponse/espd-cac:EconomicOperatorParty/cac:Party/cac:PartyIdentification/cbc:ID
Test
not(@schemeID) or @schemeID = 'National_Number'
Usage
/ espd:ESPDResponse / espd-cac:EconomicOperatorParty / cac:Party / cac:PartyIdentification / cbc:ID / @schemeID