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Warning

UBL-CR-643: Payment means do not belong on a discount inside the line price

In short

Warning: worth checking.

UBL-CR-643 means a cac:AllowanceCharge block inside an invoice or credit note line's price contains payment instructions (cac:PaymentMeans). Remove that nested block and put any required payment instructions at document level (BG-16).

On this page

What it means

The rule checks every cac:Price/cac:AllowanceCharge on invoice and credit note lines for cac:PaymentMeans. It does not check document-level payment instructions (BG-16), require a particular payment method or require an IBAN.

Why it matters

EN 16931 represents payment instructions at document level, not inside a line's price discount.

How to fix it

Remove cac:PaymentMeans from cac:AllowanceCharge inside cac:Price in each affected cac:InvoiceLine or cac:CreditNoteLine. Keep any required payment instructions in the document-level cac:PaymentMeans. For a bank transfer, check the payment account identifier (BT-84), which may be an IBAN. Export the corrected file and recheck it.

Once the file is corrected, check it again for free: Validate an invoice against EN 16931

Or fix the invoice in a form and download the corrected file, for 1 credit: Fix a rejected e-invoice

The rule as published

A UBL invoice should not include the InvoiceLine Item Price AllowanceCharge PaymentMeans

Where this rule applies

Rule set Version
EN 16931 (UBL) 1.3.17
EN 16931 (UBL credit note) 1.3.17
XRechnung 3.0 (UBL) 3.0.2
XRechnung 3.0 (UBL credit note) 3.0.2
Peppol BIS Billing 3.0 (invoice) 2026.5
Peppol BIS Billing 3.0 (credit note) 2026.5
SI-UBL 2.0 / NLCIUS (invoice) 2.0.3.13
SI-UBL 2.0 / NLCIUS (credit note) 2.0.3.13
France CTC (UBL invoice) 1.4.0-04
France CTC (UBL credit note) 1.4.0-04
CIUS-RO UBL Invoice 1.0.9 1.0.9
CIUS-RO UBL Credit Note 1.0.9 1.0.9
Rule text from phive-rules 4.6.4.

Check your file

Drop your e-invoice to see whether UBL-CR-643 still fails, and which other rules do.

Updated 6 November 2026