UBL-CR-155: Do not use a separate building number in the seller's address

What it means

In a UBL invoice or credit note, the seller (BG-4) has a postal address (BG-5) under cac:AccountingSupplierParty/cac:Party/cac:PostalAddress. This rule checks that this address has no cbc:BuildingNumber, the house number as its own element. In EN 16931 the house number is part of the street line (BT-35).

Why it matters

This is a warning, so the file is still accepted. The recipient's software reads the street line and normally ignores the separate number, so the address it stores can be missing the house number. Fix it so the buyer has your full address, and to get a file without warnings.

How to fix it

In your invoicing software, enter the street and the house number in one street field, for example High Street 12, instead of two separate fields, then export again. If your software always splits them, check whether it has an option to combine them in the e-invoice. If you build the XML yourself, put the number in cbc:StreetName and delete cbc:BuildingNumber from cac:PostalAddress.

The rule as published

A UBL invoice should not include the AccountingSupplierParty Party PostalAddress BuildingNumber

Where this rule applies