# SDI-00429

Source: https://xmlvalid.com/rules/SDI-00429

> 2.2.2.2 <Natura> non presente a fronte di 2.2.2.1 <AliquotaIVA> pari a zero

- Level: error
- Rule sets: SdI checks (FatturaPA ordinary invoice) Specifiche tecniche 1.9.1
- Context: `/p:FatturaElettronica/FatturaElettronicaBody/DatiBeniServizi/DatiRiepilogo`
- Test: `$rate != 0 or Natura`

In English: A summary (2.2.2) with a zero VAT rate has no Natura.

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