How to assign a number to request a completed form?

Tell me how to do this piece!
It is necessary that after sending the completed form to the client saw the number that was assigned to his request. But like: Thank you, your request is assigned number 111. Use it in all correspondence with us.
Joomla 1.15.22, Chronoforms_J1.5_V4_RC2.0

Hi Andtwo,

I've just published a new action - the Unique ID [GH] - that will allow you to assing a unique random string to a record. This should do what you need.

You can get it from here

Bob