Welcome to your interview.
The question is on your right: Define Campaign North Star Metric. Take a moment with it first.
Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes). Discussion and graded submissions share your five interviewer interactions, so spend them well.
You are planning how to measure a marketing campaign and want one clear success metric that reflects real business value. You also need supporting KPIs that help the team read performance early and diagnose what is working across the funnel.
How would you define the right north star metric and supporting KPIs for a marketing campaign?