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Warning

CII-SR-118: Do not give a unit conversion factor on the price of a line

In short

Warning: worth checking.

CII-SR-118 means the price before discount on an invoice line has an order unit conversion factor, which EN 16931 does not use. Remove it from the price block; the file is still accepted.

On this page

What it means

The gross price block of an invoice line (GrossPriceProductTradePrice, inside SpecifiedLineTradeAgreement) contains an OrderUnitConversionFactorNumeric, a factor for converting between the unit the goods were ordered in and the unit the price is quoted in. The invoice standard has no such factor.

Why it matters

A recipient that ignores the factor works with the price and quantity as written. This is a warning and the invoice is still accepted. It is worth fixing if your price and quantity are in different units, because the figures on the line then need to be converted into the same unit before they are written to the file.

How to fix it

Remove the factor from the price of every line. Check that the unit price and the quantity on the line are in the same unit, so that quantity times unit price gives the line amount excluding VAT. If your software converts units on export, convert the figures there so the file shows the final values.

The rule as published

OrderUnitConversionFactorNumeric 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-118 still fails, and which other rules do.

Updated 6 November 2026