[ibr-tdd-38] – The cac:Party element MUST NOT contain elements other than cac:PostalAddress (BG-08), cac:PartyLegalEntity, and optionally cac:PartyTaxScheme.
ibr-tdd-38/pxs:TaxData/pxs:ReportedTransaction/pxs:ReportedDocument/cac:AccountingCustomerParty/cac:Partycount(*[not(self::cac:PostalAddress or self::cac:PartyTaxScheme or self::cac:PartyLegalEntity)]) = 0