Allowance/charge base amount MUST be provided when allowance/charge percentage is provided.
ubl-invoice:Invoice/cac:AllowanceCharge[cbc:MultiplierFactorNumeric and not(cbc:BaseAmount)] | ubl-invoice:Invoice/cac:InvoiceLine/cac:AllowanceCharge[cbc:MultiplierFactorNumeric and not(cbc:BaseAmount)] | ubl-creditnote:CreditNote/cac:AllowanceCharge[cbc:MultiplierFactorNumeric and not(cbc:BaseAmount)] | ubl-creditnote:CreditNote/cac:CreditNoteLine/cac:AllowanceCharge[cbc:MultiplierFactorNumeric and not(cbc:BaseAmount)]false()