Is possible to assign an unique code (serial number) to each form sent?

Hello transpasj1,

Do you mean to say that you want to generate a unique serial number code for eavery form submission you receive in your form?

You may like to take a look at the following guide which should help you on how to add unique id in form:  https://www.jotform.com/help/79-How-to-Add-Custom-Unique-IDs-to-your-Form-Submissions

Hope this helps.

Do get back to us if you have any questions.

Thank you!