If I have Marketing List A, and Event Participants that have already registered to a webinar, I want to create a temp marketing list including everyone in List A, minus the event participants that have already registered.
I tried doing an advanced find, but for some reason it doesn't work. It works great if you want to see people that are registered + in the list, but not unregistered + in the list.
Is there a better way to do this? I've included an image of the criteria I'm using. Thanks!