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Warning

BR-NL-22: The note subject code is not recommended in CII invoices

In short

Warning: worth checking.

BR-NL-22 means a note on the CII invoice carries a subject code (BT-21), which the Dutch rules do not recommend. It is only a warning and the file is still accepted; remove the code unless you agreed it with the buyer.

On this page

What it means

A free-text note on the invoice has a subject code (BT-21), a short code that classifies the note. This rule exists only in the CII rule set, and it raises the warning whenever a subject code is used.

Why it matters

Nothing is rejected. The Dutch rule set says such a code should only be used if you have agreed it with the receiving party, because the recipient cannot be expected to act on it otherwise.

How to fix it

Remove the subject code from your invoice notes in the invoicing software or the export settings. The note text itself can stay. If your buyer asked you to use specific codes, keep them and ignore the warning.

The rule as published

The use of an invoice note subject code (/rsm:ExchangedDocument/ram:IncludedNote/ram:SubjectCode) is not recommended. If deemed necessary the code shall be agreed upon with the receiving party.

Where this rule applies

Rule set Version
NLCIUS (CII) 1.0.3.13
Rule text from phive-rules 4.6.4.

Check your file

Drop your e-invoice to see whether BR-NL-22 still fails, and which other rules do.

Updated 6 November 2026