CRP20112

Si no existe el nodo AcuentaTerceros, no se deben registrar apartados dentro de Conceptos.

In English The Concepto of a payment receipt has no child elements other than ACuentaTerceros.

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:Comprobante[@TipoDeComprobante = 'P']/cfdi:Conceptos/cfdi:Concepto
Test
every $c in * satisfies ($c/self::cfdi:ACuentaTerceros or $c/self::cfdi:Impuestos)

Checked with CFDI 4.0