Is It Possible To Let Users Edit Their Forms After Submission

Can a user go back days later after submitting their form & edit their submitted form?

Yes. It is possible to edit a submission later by the user after submitting the form. Please go through the guide below that provides step-by-step instructions to achieve this.

https://www.jotform.com/help/40-How-to-Let-Users-Update-Their-Form-Submissions-at-a-Later-Date

Cheers!