I'm trying to perform a fairly simple task, but can't figure out how to do it using the filters and constraints in Smart Lists.
Essentially, I'm trying retroactively see if a engagement program email contributed to a lead taking an action using Smart Lists. In this case, I'm trying to see if an email was sent and engaged with BEFORE a lead registered for a product trial or became a customer, therefore, I can say that an email contributed/assisted to that lead signing up. Right now I'm using the Date of Activity constraint, but that doesn't provide an order of events.
Anyone have any ideas on how I can setup a smart list or even smart campaign to determine whether or not one action had an influence on another based on dates?