Welcome to your interview.
The question is on your right: Measure Implementation Success. 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 have just led a customer implementation for an enterprise software product. The customer is live, stakeholders want to know whether the rollout is actually succeeding, and you need a way to separate early adoption signals from longer-term business outcomes.
How do you measure the success of a customer implementation?