errorEN 16931

BR-CL-15:Country codes in an invoice MUST be coded using ISO code list 3166-1

A country code in the invoice is not a valid ISO 3166-1 alpha-2 code. All country fields must use 2-letter codes.

Severity
Fatal
Rule set
EN 16931
Country
All EU
Fix type
AUTO-FIX
Confidence
90%
Category
codelist

Engine Classification

Normalize country codes to valid ISO 3166-1 alpha-2 codes

Confidence: 90% · Applied automatically in pipeline

What is BR-CL-15?

BR-CL-15 is a fatal validation rule defined in the EN 16931 specification. It validates the IdentificationCode element in the UBL invoice XML.

When this rule fires, the invoice is non-compliant and will be rejected by Peppol access points and national validation services. The sending system receives a rejection response and the invoice does not reach the buyer.

Target path: //cbc:IdentificationCode

Why This Error Matters

Invoice rejected. Proper country codes are required for compliance and routing.

BR-CL-15 is a hard failure. Invoices that trigger this rule are rejected at the access point and never reach the recipient. In Peppol networks, this means your sending system receives an MLR (Message Level Response) with a rejection status. The invoice must be corrected and re-sent, adding delay to your payment cycle.

Invoice Navigator can automatically correct this error in your pipeline. The fix is applied with full audit evidence, so your compliance trail remains intact.

Validator Behavior

  • ·Causes invoice rejection
  • ·Error returned: BR-CL-15
  • ·Specification: EN 16931

Before / After

Failing XML
<Invoice>
  <!-- Issue: Item origin country codes MUST be coded using ISO code list  -->
</Invoice>
Corrected XML
<Invoice>
  <!-- Issue resolved per EN 16931 -->
</Invoice>

Technical Reference

XPath//cbc:IdentificationCode
SpecEN 16931
Operationnormalize
StrategyNormalize country codes to valid ISO 3166-1 alpha-2 codes

Common Causes

  • ·Country code not from ISO 3166-1 alpha-2 list
  • ·Full country name used instead of 2-letter code
  • ·Invalid or obsolete country code in address
  • ·Country code lowercase instead of uppercase
  • ·3-letter ISO code used instead of 2-letter

Seeing this in production? The API handles BR-CL-15 automatically. See the fix response →

See Also

Last updated: 27 February 2026

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Handle BR-CL-15 Automatically in Your Pipeline

The compliance engine auto-remediates this error with controlled safety policies and evidence pack generation.