NFE-381
Rejeição: Grupo de tributação ICMS90, informando dados do ICMS-ST [nItem: …].
In English An NF-e with the DANFE Simplificado Tipo 2 gives ICMS-ST data in ICMS90.
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.
nfe:infNFe/nfe:det
not($simple and $cst = '90' and $icms/nfe:modBCST)
Checked with NF-e 4.00, NF-e 4.00 with authorisation protocol