# NFE-552

Source: https://xmlvalid.com/rules/NFE-552

> Rejeição: Chave de Acesso referenciada com CNPJ/CPF inválido [nOcor: …] (…, série …).

- 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:ide/nfe:NFref/nfe:refNFe`
- Test: `br:keyissuer($k)`

> Rejeição: Chave de Acesso referenciada com CNPJ inválido [nOcor: …] (CT-e, …).

- 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:ide/nfe:NFref/nfe:refCTe`
- Test: `br:cnpj(substring($k, 7, 14))`

In English: The CNPJ or CPF inside a referenced key is zeros or has wrong check digits (a CPF in series 910 to 969, or in an NFF whose number's fifth digit is 2).

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