Most marketing automation fails because it is bought as software before a strategy exists, so the failure is almost always setup and process, not the tool. Automating an undefined or broken funnel just makes the mess run faster. The common failure modes are no clear lead definition, scattered data, no owner, and set-and-forget sequences nobody revisits. Automation set up right starts with one qualified, repeatable path from stranger to booked call, then removes the manual steps inside it without removing the human judgment around it.