[ibr-tdd-41] The /cac:TaxScheme/cbc:ID element MUST be present
ibr-tdd-41
/pxs:TaxData/pxs:ReportedTransaction/pxs:ReportedDocument/cac:AccountingSupplierParty/cac:Party/cac:PartyTaxScheme
exists(cac:TaxScheme/cbc:ID)