TL;DR — Quick Summary

Fix IDSE errors sending affiliate movements to Mexico's IMSS: rejected registrations, expired NPIE certificate, NSS/CURP validation failures and portal issues.

IDSE Affiliate Movement Errors

IDSE is Mexico’s IMSS portal for electronic submission of worker affiliate movements.

Common Errors

1. Invalid NSS/CURP

Solution: Verify NSS and validate CURP at gob.mx/curp.

2. Expired NPIE Certificate

Solution: Check certificate validity (2 years). Reinstall in browser certificate store.

3. Late Submission

Solution: Registrations must be within 5 business days. Late submissions require in-person processing.