Can I edit user submissions?

I'm interested in a form that uses a field (id or e-mail) and if the user already submitted an answer his registry can be re-edited

It it indeed possible to edit user submissions made on your forms. Please follow our guide on that here: https://www.jotform.com/help/325-How-to-Edit-Submissions-Made-on-Your-Forms

I hope this helps. If you need further assistance please let us know. Thank you.