EN16931 1.3.16 · UBL / CII · Severity: ERROR
The Buyer postal address shall have a Buyer country code (BT-55)
The buyer postal address must include an ISO 3166-1 alpha-2 country code (BT-55).
- Rule ID & Severity
BR-11· ERROR- Standard & Scope
- EN16931 1.3.16 · UBL / CII
- XPath Condition
exists(cac:AccountingCustomerParty/cac:Party/cac:PostalAddress/cac:Country/cbc:IdentificationCode)- Target XML Path
cac:AccountingCustomerParty/cac:Party/cac:PostalAddress/cac:Country/cbc:IdentificationCode
Find the source field
cac:AccountingCustomerParty/cac:Party/cac:PostalAddress/cac:Country/cbc:IdentificationCode
Match namespace URI and element name, not a particular prefix spelling. The validator reports the full expanded-name source path when the published rule supplies a location.
Common causes
- Customer country code was left blank in the CRM or ERP record.
Invalid and corrected fragments
<cac:PostalAddress><cbc:CityName>Paris</cbc:CityName></cac:PostalAddress>
<cac:PostalAddress><cbc:CityName>Paris</cbc:CityName><cac:Country><cbc:IdentificationCode>FR</cbc:IdentificationCode></cac:Country></cac:PostalAddress>
Add cac:Country/cbc:IdentificationCode (UBL) or ram:CountryID (CII) to the buyer address.
Open BR-11 in en16931-validator →
Verify the whole document
These are fragments, not complete invoices. The exact rule is exercised by synthetic mutation tests against the stated package. Correcting one field does not prove conformance; run the full selected validator again. Published messages and severity remain authoritative.
Explanation record: 2026-10-14 · Local WebAssembly / SaxonJS validation. No invoice-derived report is published as a search page.