The PAC does not “hate” your operation: it rejects incoherent SICT permit or vehicle configuration. AP should not learn this at payment time.
Top errors that kill the CFDI
Permit vs config, plates vs figure, expired or mis-mapped catalog keys.
Pre-departure checklist
Unit and permit on the TMS trip, operator/figure, aligned goods.
Pre-pay checklist
Open XML, not only PDF; match GPS/POD; hold on mismatch.
Key takeaways5 points
- c_TipoPermiso and c_ConfigAutotransporte must match the real unit.
- Plates, transport figure, and permit are top rejection errors.
- Validate before departure and again before approving the invoice.
- TMS–PAC double entry is the error factory.
- Hold payment if XML does not match the trip.
Want to land this on your lane?
Operational education for Mexico–US shippers: criteria, evidence, and payment governance. Not legal or tax advice.
Every accessorial, document, or panel requirement should match the shipment ID before payment.
Not on day one. Keep the system of record and add agents that execute and audit on top. Typical pilot 6-8 weeks.
Helps detect exceptions and avoid paying without a file. Your team decides hold, dispute, or assignment.
When auditing 100% of a pilot lane, the observed OCL pattern is around 5-7% of that spend universe.