[ibr-124-ae]-Tax point date [IBT-007] MUST not be there when invoice type code (IBT-003) is 'credit note' or 'Credit note related to goods or services'.
ibr-124-ae
/ubl:Invoice | /cn:CreditNote
not(cbc:InvoiceTypeCode = "381" or cbc:InvoiceTypeCode = "81") or not(cbc:TaxPointDate)