BR-41

Every invoice line allowance (BG-27) must carry an amount (BT-136). An allowance or charge without an amount changes nothing, and then does not belong in the document.

Severity: Error
Applies to: CII, UBL
Rule set: v2026-01-31

Official rule text

Each Invoice line allowance (BG-27) shall have an Invoice line allowance amount (BT-136).

Why does BR-41 happen?

Line discounts arrive from pricing as a percentage. The percentage is carried through and the amount that follows from it is never worked out.

How do you fix BR-41?

Write the amount into cbc:Amount inside cac:AllowanceCharge in UBL, ram:ActualAmount inside ram:SpecifiedTradeAllowanceCharge in CII. On how amount, base amount and percentage relate, see PEPPOL-EN16931-R040.

In the XML

A UBL fragment. The CII path is named above — same change, different element names.

Fails

<cac:InvoiceLine>
  <cbc:ID>1</cbc:ID>
  <cac:AllowanceCharge>
    <cbc:ChargeIndicator>false</cbc:ChargeIndicator>
    <cbc:AllowanceChargeReason>Rabatt</cbc:AllowanceChargeReason>
  </cac:AllowanceCharge>
</cac:InvoiceLine>

Fixed

<cac:InvoiceLine>
  <cbc:ID>1</cbc:ID>
  <cac:AllowanceCharge>
    <cbc:ChargeIndicator>false</cbc:ChargeIndicator>
    <cbc:AllowanceChargeReason>Rabatt</cbc:AllowanceChargeReason>
    <cbc:Amount currencyID="EUR">50.00</cbc:Amount>
  </cac:AllowanceCharge>
</cac:InvoiceLine>

NormAPI provides technical validation, not tax or legal advice.