PEPPOL-EN16931-R061

For direct debit the mandate reference must be provided — the identifier of the mandate under which the payer agreed to the collection.

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

Official rule text

Mandate reference MUST be provided for direct debit.

Why does PEPPOL-EN16931-R061 happen?

The mandate lives with the payment provider while the invoice is built as a bare request for payment. The reference exists, but in a different system from the one producing the document.

How do you fix PEPPOL-EN16931-R061?

Carry the mandate reference into BT-89: cac:PaymentMeans/cac:PaymentMandate/cbc:ID in UBL, ram:SpecifiedTradePaymentTerms/ram:DirectDebitMandateID in CII. On the German path BR-DE-25-a applies as well.

In the XML

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

Fails

<cac:PaymentMeans>
  <cbc:PaymentMeansCode>59</cbc:PaymentMeansCode>
  <cac:PaymentMandate>
    <cac:PayerFinancialAccount>
      <cbc:ID>DE02120300000000202051</cbc:ID>
    </cac:PayerFinancialAccount>
  </cac:PaymentMandate>
</cac:PaymentMeans>

Fixed

<cac:PaymentMeans>
  <cbc:PaymentMeansCode>59</cbc:PaymentMeansCode>
  <cac:PaymentMandate>
    <cbc:ID>MANDAT-2026-0007</cbc:ID>
    <cac:PayerFinancialAccount>
      <cbc:ID>DE02120300000000202051</cbc:ID>
    </cac:PayerFinancialAccount>
  </cac:PaymentMandate>
</cac:PaymentMeans>

NormAPI provides technical validation, not tax or legal advice.