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PEPPOL-EN16931-R121

The price base quantity (BT-149) is not above zero

Validation rule of XRechnung 3.0.2 (KoSIT, Schematron 2.6.0) · Level: Error

What the message means

The price base quantity (BT-149) is not above zero.

What the issuer needs to change

Give a positive base quantity, usually 1.

This rule is part of XRechnung, even though its name starts with PEPPOL.

Fields concerned

Your invoice reports PEPPOL-EN16931-R121? Check it with SmartFormular E-Rechnung lite, free to try until 31 December 2026: the tool shows every finding with an explanation, the invoice in readable form and a GiroCode to pay – in your browser, no upload.

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Origin

Rule set
XRechnung 3.0.2 (KoSIT, Schematron 2.6.0)
Syntax
CII, UBL
Level
Error

Original rule text

Base quantity MUST be a positive number above zero.

Source: KoSIT, XRechnung Schematron 2.6.0, Apache License 2.0

Technical details for IT

UBL

Context: cac:InvoiceLine | cac:CreditNoteLine
Test: not(not(cac:Price/cbc:BaseQuantity) or xs:decimal(cac:Price/cbc:BaseQuantity) > 0)

CII

Context: ram:NetPriceProductTradePrice | ram:GrossPriceProductTradePrice
Test: not(not(ram:BasisQuantity) or xs:decimal(ram:BasisQuantity) > 0)

Related rules

All validation rules

Technical explanation by robin.vision, not tax or legal advice. Rules as of 31 August 2026 (KoSIT validator configuration).