How do I customize campaign templates?
When you are on a campaign detail page, find the card called Followups.
Click the large "Day +" icon to add a new day with text, email, or voicemail followup.
Click the small "plus" icon to add a new followup instance (text, email, voice) to a particular day.
To adjust the messages themselves, select the particular message you want to update, make the changes, then click the Update button at the bottom of the form to save your changes.