[BR-50-SG]-A Payment account identifier (IBT-84) shall be present if Credit transfer (IBG-17) information is provided in the Invoice.
BR-50-SGcac:PaymentMeans[cbc:PaymentMeansCode='30' or cbc:PaymentMeansCode='58']/cac:PayeeFinancialAccountnormalize-space(cbc:ID) != ''