New to PD - need help with Contacts back to Leads

Adamskier Member Posts: 1
edited October 16 in Sales CRM #1

I have a bunch of contacts in PD but many are very cold and could do with re-qualifying, or starting again. Some are probably dead.

What is the best practice to move the Contacts back into Leads? Or is there a better option? If I manually add them as a lead I get a duplicate record!