[ibr-01-ng]-An Invoice shall have the Supplier’s TIN (ibt-032).
ibr-01-ng
/ubl:Invoice | /cn:CreditNote
exists(cac:AccountingSupplierParty/cac:Party/cac:PartyTaxScheme[cac:TaxScheme/cbc:ID != 'VAT']/cbc:CompanyID)