# NFE-1072

Source: https://xmlvalid.com/rules/NFE-1072

> Rejeição: DFe/Item referenciado em duplicidade (a mesma chave de acesso e item mais de uma vez).

- 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: `count($itemRefs) = count(distinct-values(for $r in $itemRefs return concat($r/nfe:chaveAcesso, '|', $r/nfe:nItem)))`

In English: The same access key and item are referenced twice in DFeReferenciado.

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