PEPPOL-EN16931-R130
Unit code of price base quantity MUST be same as invoiced quantity.
What does this rule mean?
The unit of the price base quantity differs from the invoiced quantity unit (BT-130).
Price and quantity must refer to the same unit, otherwise the line arithmetic is meaningless (pieces against hours).
Official rule message (standard)
Unit code of price base quantity MUST be same as invoiced quantity.
Where the rule applies
Syntax: CII · UBL
The same rule, expressed twice: UBL and CII name the same fields with different paths. Running a CII file against the UBL rules is why you get errors that mean nothing.
UBL
cac:Price/cbc:BaseQuantity[@unitCode]
CII
ram:NetPriceProductTradePrice/ram:BasisQuantity[@unitCode] | ram:GrossPriceProductTradePrice/ram:BasisQuantity[@unitCode]
Technical test
The rule passes when this Schematron expression holds true:
@unitCode = ../../../ram:SpecifiedLineTradeDelivery/ram:BilledQuantity/@unitCodeHow to fix it
A missing or incorrect business entry only you can supply. Add or correct it, then re-check.
Use the same unit for the price base quantity and the invoiced quantity.
Correct the affected entry in your XML, then re-check the invoice. Validation runs locally in your browser — your file never leaves your machine.
Check an e-invoice here
Drop an XML or ZUGFeRD PDF file here. Validation runs locally in your browser against EN 16931 — your file never leaves your machine.