# NFE-881

Source: https://xmlvalid.com/rules/NFE-881

> Rejeição: Percentual de FCPST igual a zero [nItem: …].

- Level: error
- Rule sets: SEFAZ authorisation rules of NF-e 4.00 MOC 7.0 Anexo I, NTs up to 2026.010
- Context: `nfe:infNFe/nfe:det`
- Test: `not($icms/nfe:pFCPST) or br:dec($icms/nfe:pFCPST) != 0`

> Rejeição: Percentual de FCPST retido igual a zero [nItem: …].

- Level: error
- Rule sets: SEFAZ authorisation rules of NF-e 4.00 MOC 7.0 Anexo I, NTs up to 2026.010
- Context: `nfe:infNFe/nfe:det`
- Test: `not($icms/nfe:pFCPSTRet) or br:dec($icms/nfe:pFCPSTRet) != 0`

In English: The FCP ST rate (pFCPST or pFCPSTRet) is zero; leave the fields out for products not subject to it.

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