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Warning

CII-SR-223: Seller's legal organisation must not have a classification code

In short

Warning: worth checking.

CII-SR-223 means the seller's legal organisation has a LegalClassificationCode element, which EN 16931 does not use. The invoice is still accepted, and you clear the warning by deleting the code and keeping the company registration number.

On this page

What it means

The seller (BG-4) may give a company registration number (BT-30) in the ID of SpecifiedLegalOrganization, and a trading name (BT-28) in TradingBusinessName. The rule checks that this element has no LegalClassificationCode.

Why it matters

This is a warning, so the invoice is still accepted. The recipient reads the registration number and the trading name from the legal organisation, and nothing else. The classification code is ignored.

How to fix it

In SpecifiedLegalOrganization under the seller, delete LegalClassificationCode. Keep the ID with your company registration number and the trading name if you use one. If your software writes a legal form code, look for a setting to leave it out of the e-invoice.

The rule as published

LegalClassificationCode should not be present

Where this rule applies

Rule set Version
EN 16931 (CII) 1.3.17
XRechnung 3.0 (CII) 3.0.2
NLCIUS (CII) 1.0.3.13
France CTC (CII) 1.4.0-04
Rule text from phive-rules 4.6.4.

Check your file

Drop your e-invoice to see whether CII-SR-223 still fails, and which other rules do.

Updated 6 November 2026