CFDI40171
El nodo concepto, no contiene el nodo hijo Impuestos.
In English A line with ObjetoImp 02 (subject to tax) must have its Impuestos.
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.