I currently have three active engagement programs. To enter a program, a lead must fill out a form on a landing page. Once they fill out the form, they will then receive a series of nurture emails over time.
I'm looking for a way to prevent a lead from entering more than one program at a time. I know I can manually remove a lead from a program or stream, but I was hoping to automate this.
For example, a lead visits the landing page for Program A and fills out the form. A week later, they visit the landing page for Program B and fill out the form. How can I set rules to prevent that lead from receiving nurture stream emails from both Program A and Program B?