Is it possible to pull a contact out of an email sequence if a tag is applied to the contact? For example, if a contact opts into signing up, but doesn't purchase, then they get a few emails, then purchase, can I tag the contact with that purchase tag and it pulls them out of the abandoncart email sequence? Or do I have to create an automation, and individual sequence/emails for the abandoncart email sequence to be able to pull the contact out of that sequence if they purchase..