warningpeppol-bis-3

`BR-39`:Item identifier recommended

Line items should have an item identifier for matching and processing.

Severity

Warning

Rule set

peppol-bis-3

Country

All EU

Fix type

INPUT REQUIRED

Engine Classification

Business data required · Explicit input workflow · No assumptions made

Required input: Item Identifier

What is BR-39?

BR-39 is a warning validation rule defined in the peppol-bis-3 specification. It validates the ID element under Item > SellersItemIdentification in the UBL invoice XML.

This is a soft validation failure. The invoice may pass initial transmission, but non-compliant values in this field can cause problems during tax audits, buyer-side processing, or downstream VAT reconciliation.

Target path: XPath: /Invoice/cac:InvoiceLine/cac:Item/cac:SellersItemIdentification/cbc:ID

Get API Access

Why This Error Matters

Item identifiers enable automated order matching and processing.

BR-39 is a soft failure. The invoice may pass initial validation, but the non-compliant field can cause issues at the receiving end — tax authorities may flag it during audits, buyer ERP systems may fail to process it, or VAT reconciliation may produce mismatches. Fixing warnings before they accumulate prevents larger compliance gaps.

Validator Behavior

·Generates validation warning
·Rejected by PEPPOL Access Points
·Error returned: BR-39
·Specification: peppol-bis-3

How to Fix It

Add item ID

Your product/service code

Or buyer ID

BuyersItemIdentification if provided by buyer

Or standard ID

StandardItemIdentification with EAN, GTIN, etc.

XML Example

Generic example based on the rule's target XPath. Your actual XML structure may differ.

Before

<!-- Incorrect value -->
<cbc:ID>INVALID</cbc:ID>

After

<!-- Corrected value -->
<cbc:ID>VALID_VALUE</cbc:ID>

Technical Reference

XPathXPath: /Invoice/cac:InvoiceLine/cac:Item/cac:SellersItemIdentification/cbc:ID

Specpeppol-bis-3

Code Example

<cac:Item>
  <cbc:Name>Professional Services</cbc:Name>
  <cac:SellersItemIdentification>
    <cbc:ID>SVC-001</cbc:ID>
  </cac:SellersItemIdentification>
</cac:Item>

Common Causes

·No product codes
·ID not mapped from order
·Internal codes only

Seeing this in production? The API handles BR-39 automatically. See the fix response →

Commonly Seen In

All invoicing software

Frequently Asked Questions

Line items should have an item identifier for matching and processing.

Add seller item identification. You can also use Invoice Navigator's automatic Fixer tool to correct this instantly.

BR-39 is a warning that may not always cause rejection, but it indicates a potential compliance issue that should be addressed to ensure full compatibility.

Many instances of BR-39 can be automatically corrected using Invoice Navigator's Fixer tool. Upload your invoice and the tool will identify and fix common issues, including item identifier recommended.

BR-39 is commonly seen in exports from All invoicing software. These software packages sometimes generate invoices that need adjustment to meet full compliance standards.

Related Errors

BR-14

Invoice line net amount required

BR-17

Invoice line item name required

Last updated: 18 January 2026

Share this guide:

Handle BR-39 Automatically in Your Pipeline

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

Get API Access View API Documentation

BR-39:Item identifier recommended