Your question is Designing an Engagement Product Metric. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
How would you design a product metric for assessing user engagement at a payments platform?
Explain which product or user behavior you would measure, define the engaged-user population, and justify the time window and aggregation method. Cover the calculation, segmentation, validation approach, and guardrail metrics. Use illustrative assumptions where necessary, clearly distinguishing them from observed data.