What happens if I try to sign with an expired e.firma in Cincel?

If you attempt to upload .CER and .KEY files from an e.firma that has already expired, the Cincel system will detect its expiration and show you an error message or prevent you from continuing with the signing process. This is a security and compliance measure that Cincel implements to protect the integrity and legal validity of your documents.

What to do if your e.firma has expired?

If your e.firma has expired, the only solution is to process its renewal directly with the SAT.

• Verify the expiration date: Confirm the exact expiration date in your .CER files.

• Schedule an appointment or renew online: The SAT offers options to renew your e.firma online (if it meets certain requirements) or by visiting its offices with a prior appointment.

• Obtain your new certificate: Once the process with the SAT is completed, you will receive your new .CER and .KEY files, which will have a new validity date.