Is there a way to assign a submissions/transaction ID # to each submission automatically when they are submitted? 

We are wanting to have this be a field that we could use a token within a confirmation auto reply email back to the person submitting the information, so that if there was any followup they could have a reference number that we could track any future correspondents back to the original submission. 

There may be another way to do this that I am not considering so open to options or ideas. 

Thanks!