# HR-BR-20

Source: https://xmlvalid.com/rules/HR-BR-20

> Jedinična količina za cijenu artikla, ako je iskazana, MORA biti pozitivan broj veći od nule

- Level: error
- Rule sets: Croatian eRačun rules (UBL) 13.03.2026
- Context: `cac:InvoiceLine | cac:CreditNoteLine`
- Test: `not(cac:Price/cbc:BaseQuantity) or xs:decimal(cac:Price/cbc:BaseQuantity) > 0`

In English: The item price base quantity, when given, must be a positive number greater than zero.

Validate a document against these rules: https://xmlvalid.com/validate