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NFE-316

Rejeição: Chave de Acesso referenciada com a mesma Chave de Acesso da Nota Fiscal atual [nOcor: …].

In English The NF-e references its own access key.

error: the document is invalid

What the rule checks

As the rule set's publisher wrote it. The rule runs on every element the context matches, and fails where the test is false; the validator reports the line of that element.

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
concat('NFe', $k) != string(ancestor::nfe:infNFe/@Id)

Checked with NF-e 4.00, NF-e 4.00 with authorisation protocol