An email campaign goes out, a contact unsubscribes, and unless someone remembers to check the list by hand, that person keeps getting texted anyway even though they have already said no. Constant Contact already tracks new contacts, list unsubscribes and email opens as they happen, so those moments do not have to depend on someone logging in to notice them days later.

Connected through Zapier, a new contact added in Constant Contact can be created in Mobile Message straight away, and someone who unsubscribes from email can be added to the SMS opt out list at the same time, so the two channels stay honest with each other instead of drifting apart. The connection also runs in reverse, a reply that comes in through Mobile Message can be added to a list in Constant Contact, ready for the next email campaign without anyone copying names across by hand or opening two separate systems to keep both lists current.