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Warning

UBL-CR-218: The buyer's address should not have a separate house number field

In short

Warning: worth checking.

UBL-CR-218 means the buyer's postal address in your UBL file has the house number in its own element (BuildingNumber), which EN 16931 does not use. This is a warning. Include any house number you need in the street address line (BT-50), then remove cbc:BuildingNumber from the buyer's cac:PostalAddress.

On this page

What it means

The rule warns if cac:AccountingCustomerParty/cac:Party/cac:PostalAddress in a UBL invoice or credit note contains cbc:BuildingNumber. In UBL that element holds the house or building number on its own. EN 16931 has no separate field for it; you can include the number in the first address line (BT-50).

Why it matters

EN 16931 has no separate building number field. Keeping the number in an address line lets you retain that detail while removing cbc:BuildingNumber.

How to fix it

If you need to keep the house number, combine it with the street name in cbc:StreetName (BT-50), inside cac:AccountingCustomerParty/cac:Party/cac:PostalAddress. Follow the local address order, for example '12 High Street' or 'Hauptstrasse 12'. Delete cbc:BuildingNumber from the same address, export again 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 AccountingCustomerParty Party PostalAddress BuildingNumber

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-218 still fails, and which other rules do.

Updated 6 November 2026