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Warning

CII-SR-356: Do not give the payee a trading name

In short

Warning: worth checking.

CII-SR-356 means the payee's legal organisation block holds a TradingBusinessName, which EN 16931 does not use for the payee. Delete it and keep the payee name and registration number only.

On this page

What it means

A trading name is the name a business trades under, when that differs from its legal name. EN 16931 has one for the seller (BT-28) but not for the payee. In the payee's legal organisation block (SpecifiedLegalOrganization) only the company registration number (BT-61) is expected.

Why it matters

This is a warning, so the file is still accepted. Receivers ignore the trading name of the payee, so it does not appear in the buyer's records. It is worth fixing if the buyer might not recognise the payee by its legal name alone.

How to fix it

Delete the TradingBusinessName element from the payee's legal organisation block. If the buyer knows the payee better by its trading name, use that as the payee name (BT-59) only when it is also how the payee appears on the bank account, so the payment can be matched. Otherwise keep the legal name.

The rule as published

TradingBusinessName 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-356 still fails, and which other rules do.

Updated 6 November 2026