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  4. UBL-SR-18

UBL-SR-18

Message

Buyer VAT identifier shall occur maximum once

Context
/ubl:Invoice | /cn:CreditNote
Test
(count(cac:AccountingCustomerParty/cac:Party/cac:PartyTaxScheme[cac:TaxScheme/upper-case(cbc:ID)='VAT']/cbc:CompanyID) <= 1)