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NFE-527

Rejeição: Operação de Exportação com informação de ICMS incompatível [nItem: …] (CST ……).

In English An export CFOP (starting with 7) needs ICMS CST 41 or CSOSN 300, except in returns.

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:det
Test
$c1 != '7' or $fin = '4' or $cst = '41' or $csosn = '300'

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