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Fatal

CII-DT-034: Remove unitCodeListID from quantities

In short

Fatal: fails the selected checks.

CII-DT-034 means a CII quantity carries unitCodeListID, an attribute identifying its unit code list. Remove that attribute. Do not remove or change the unitCode merely to resolve this rule.

On this page

What it means

The check applies to every CII ram element whose name ends in Quantity. It requires unitCodeListID to be absent. It does not check the unitCode value or require a unitCode to be present. A billed quantity's unit of measure is BT-130.

Why it matters

This CII mapping does not permit the extra unit code list identifier on quantities. The unitCode attribute is a separate field.

How to fix it

Remove unitCodeListID from each affected quantity. Keep the intended unitCode value, such as C62 or HUR. If your software adds the list identifier, ask its supplier to correct the CII export. Export the corrected file and recheck it.

Once the file is corrected, check it again for free: Validate an invoice against EN 16931

Or fix the invoice in a form and download the corrected file, for 1 credit: Fix a rejected e-invoice

The rule as published

unitCodeListID 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-DT-034 still fails, and which other rules do.

Updated 6 November 2026