What it means
The rule checks that the delivery section of a UBL file (cac:Delivery) has no minimum quantity (cbc:MinimumQuantity). In UBL that field gives a lower limit for a delivered quantity. EN 16931 has no business term for it.
Why it matters
EN 16931 does not use a minimum delivery quantity in the delivery section of a UBL invoice or credit note.
How to fix it
Remove the minimum quantity from the delivery data in your invoicing software and export again. If the buyer must see the figure, write it as plain text in an invoice note (BT-22). If you build the XML yourself, delete the cbc:MinimumQuantity that sits directly under cac:Delivery.
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 Delivery MinimumQuantity 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 |
Check your file
Drop your e-invoice to see whether UBL-CR-344 still fails, and which other rules do.