[IBR-175-OM] - If Invoice transaction type (BTOM-003) is Profit margin invoice '00000000010000000000', Preceding Invoice reference (IBT-025), and Preceding invoice UUID (BTOM-031) MUST be present.
IBR-175-OMubl:Invoice | cn:CreditNote not($isProfitMargin) or exists( cac:BillingReference/cac:InvoiceDocumentReference[ normalize-space(cbc:ID) != '' and normalize-space(cbc:UUID) != '' ] )