How to create a randomly generated code

I know there is a way to create a randomly generated code specifily made for the each submission before, but i cant seem to find it.

Thank you for contacting us.

We have an Unique ID field that is available under Widgets. Please see the following guide:

Add Custom Unique IDs to your Form Submissions

And if you need completely random number, it is possible to use a random function on a Form Calculation Widget.

Screencast:

http://screencast.com/t/1pqsinu0eEt4

Example:

http://form.jotformpro.com/form/41465722925963

Please feel free to contact us if you need any further assistance. We will be happy to help.