![mifiel_logo.png]](https://guia.mifiel.com/hs-fs/hubfs/mifiel_logo.png?height=35&name=mifiel_logo.png){kind=logo}
Document signing
Resources for document signers in Mifiel
How to sign a document using the e.firma in Mifiel
Features of the e.firma
Common errors
- How to sign documents with an e.firma other than the one I have registered
- What can I do if my certificate is already linked to another account?
- Why am I getting the error message “The e.firma you selected has expired/has been revoked” and how can I resolve it?
- How do I know if I am using the right files?
- When I try to sign, it says that the .cer or .key file I selected do not correspond to an e.firma issued by the SAT
- The system states that my RFC is incorrect
- What can I do if I forgot my e.firma's password?
- What can I do when my e.firma files do not match?
- I was invited to sign but I don’t see the document in the "My documents" section
- I cannot sign, I get the message "The password is incorrect"
- I cannot sign, I get the message “You selected a .cer file that corresponds to a CSD”