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Warning

CII-SR-340: Leave out the creditor reference type code

In short

Warning: worth checking.

CII-SR-340 means the settlement section of the e-invoice contains a creditor reference type code (CreditorReferenceTypeCode), which EN 16931 does not use. It is only a warning: remove the code and keep the creditor identifier if you need one.

On this page

What it means

The settlement section (ApplicableHeaderTradeSettlement) should not contain a CreditorReferenceTypeCode, a code that says what kind of creditor reference is given. The bank assigned creditor identifier (BT-90) used for direct debit is a separate element and is allowed.

Why it matters

This is a warning, so the file is still accepted. EN 16931 has no field for the type of a creditor reference, so receiving software normally ignores it. Nothing the buyer pays or books depends on it.

How to fix it

Remove the type code from the settlement section. If you collect payment by direct debit, check that the creditor identifier is still filled in under the payment details in your invoicing software. If you can choose a profile when you export, pick EN 16931 rather than Extended. Fixing it is optional and mainly keeps the check clean.

The rule as published

CreditorReferenceTypeCode 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-340 still fails, and which other rules do.

Updated 6 November 2026