# PEPPOL-EN16931-R042

Source: https://xmlvalid.com/rules/PEPPOL-EN16931-R042

> Allowance/charge percentage MUST be provided when allowance/charge base amount is provided.

- Level: error
- Rule sets: Peppol BIS Billing 3.0 rules 3.0.21, XRechnung 3.0 rules (UBL) 2.6.0
- Context: `ubl-invoice:Invoice/cac:AllowanceCharge[not(cbc:MultiplierFactorNumeric) and cbc:BaseAmount] | ubl-invoice:Invoice/cac:InvoiceLine/cac:AllowanceCharge[not(cbc:MultiplierFactorNumeric) and cbc:BaseAmount] | ubl-creditnote:CreditNote/cac:AllowanceCharge[not(cbc:MultiplierFactorNumeric) and cbc:BaseAmount] | ubl-creditnote:CreditNote/cac:CreditNoteLine/cac:AllowanceCharge[not(cbc:MultiplierFactorNumeric) and cbc:BaseAmount]`
- Test: `false()`

> Allowance/charge percentage MUST be provided when allowance/charge base amount is provided.

- Level: error
- Rule sets: XRechnung 3.0 rules (CII) 2.6.0
- Context: `ram:SpecifiedTradeAllowanceCharge[not(ram:CalculationPercent) and ram:BasisAmount]`
- Test: `false()`

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