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Warning

UBL-CR-628: An orderable unit factor does not belong on the line price

In short

Warning: worth checking.

UBL-CR-628 means the price on an invoice or credit note line contains cbc:OrderableUnitFactorRate, which EN 16931 does not use there. Remove that element and review the unit price, price base quantity (BT-149) and unit code so the price does not rely on it.

On this page

What it means

The rule checks that cac:Price on every invoice or credit note line has no cbc:OrderableUnitFactorRate. It does not check the unit price (BT-146), price base quantity (BT-149) or price base quantity unit code (BT-150), and it does not establish that those fields are equivalent replacements for a conversion factor.

Why it matters

The EN 16931 UBL rules do not use an orderable unit factor within the line price.

How to fix it

Review the unit price (BT-146), price base quantity (BT-149) and its unit code (BT-150). Do not assume that changing the base quantity alone replaces a conversion between different units. Remove cbc:OrderableUnitFactorRate from cac:Price in each affected cac:InvoiceLine or cac:CreditNoteLine, then export and recheck the file.

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 OrderableUnitFactorRate

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-628 still fails, and which other rules do.

Updated 6 November 2026