# NFE-850

Source: https://xmlvalid.com/rules/NFE-850

> Rejeição: Data de vencimento da parcela não informada ou menor que a Data de vencimento da parcela anterior.

- 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`
- Test: `every $i in 2 to count($dups) satisfies not(exists(br:date($dups[$i]/nfe:dVenc)) and exists(br:date($dups[$i - 1]/nfe:dVenc))) or br:date($dups[$i]/nfe:dVenc) ge br:date($dups[$i - 1]/nfe:dVenc)`

In English: An installment falls due before the previous one.

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