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`BR-CL-08`:Invoice note subject code must be from UNCL 4451

An Invoice Note subject code is not a valid UNCL 4451 code. Note subject codes categorize the type of note (e.g., AAI=general information, REG=regulatory, SUR=surcharge).

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AUTO-FIX

Auto-fix: Map note content patterns to UNCL4451 codes, or default to "AAI" (general information) for uncategorized notes.

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Why This Error Matters

Invoice rejected. Note categorization must use standard codes for automated processing.

How to Fix It

Find the invalid note subject code

Look for cbc:Note elements with subject code prefixes like [XXX]

Replace with valid UNCL 4451 code

Use a valid code such as AAI (general), REG (regulatory), SUR (surcharge), TXD (tax)

Technical Details

XPath: //cbc:Note (with subject code prefix like [AAI]). Uses UNCL 4451 text subject code qualifier.

Common Causes

Note subject code not from UNCL 4451
Invalid code on invoice note element
Custom note category code used
Note subjectCode contains text description
Subject code field not using standard list

Frequently Asked Questions

Unit code must be from UN/ECE Rec 20/21.

Use valid UN/ECE unit code. You can also use Invoice Navigator's automatic Fixer tool to correct this instantly.

Yes, BR-CL-08 is a critical error that will cause invoice rejection. It must be fixed before submission to ensure your invoice is accepted by the recipient's system.

Many instances of BR-CL-08 can be automatically corrected using Invoice Navigator's Fixer tool. Upload your invoice and the tool will identify and fix common issues, including invalid unit of measure code.

Related Errors

BR-CL-23

Unit code MUST be coded according to the UN/ECE Recommendation 20 with Rec 21 extension

Last updated: 16 January 2026

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BR-CL-08:Invoice note subject code must be from UNCL 4451