Verify each event fires in a real session
Go through the funnel as a stranger in incognito — sign up, or buy the cheapest thing — and watch all six land. Most tracking is broken.
Step 1.1.1.3
Time: 30m
Done when
Walk the funnel as a stranger and name, for each of the six events, the row it wrote. An event you did not see land does not count. (Proof: a list of the items.)