# CFDI40135

Source: https://xmlvalid.com/rules/CFDI40135

> El campo Meses, no contiene alguno de los valores "13", "14", "15", "16", "17" o "18".

- Level: error
- Rule sets: SAT validations of CFDI 4.0 and Pagos 2.0 Matrices of 25 March 2026 and Pagos 2.0 rev. B
- Context: `/cfdi:Comprobante/cfdi:InformacionGlobal`
- Test: `not(@Periodicidad = '05') or @Meses = ('13', '14', '15', '16', '17', '18')`

In English: In a global invoice with Periodicidad 05 (bimonthly), Meses must be a pair of months, 13 to 18.

Validate a document against these rules: https://xmlvalid.com/validate