XRechnung 2.4.0 · UBLStored validation assertion
UBL-SR-18
XRechnung 2.4.0 · UBL
fatalschema
Original rule text
[UBL-SR-18]-Buyer VAT identifier shall occur maximum once
(count(cac:AccountingCustomerParty/cac:Party/cac:PartyTaxScheme[cac:TaxScheme/upper-case(cbc:ID)='VAT']/cbc:CompanyID) <= 1)