Using Nintex 2013. Within a workflow, I'm trying to extract just Last name from a Variable that is set to DisplayName of a Person/People column. So if Display Name is Smith, John then I want to just get Smith. Goal is to put the last name in a Notification Email subject, such as
Subject: Attention - Smith - please approve.
I'd like to use some kind of function or combination of functions such as Mid. Any ideas?