CFDI40168

El valor del campo Descuento no contiene la misma cantidad de decimales registrados en el campo Importe del concepto.

In English A line's Descuento may have no more decimals than its Importe.

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.

Context
cfdi:Conceptos/cfdi:Concepto
Test
not(@Descuento) or mx:places(@Descuento) le mx:places(@Importe)

Checked with CFDI 4.0