Your question is Analytics Event Aggregation System. 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).
Design a system that aggregates and consumes analytics events.
Clarify the event producers, consumers, aggregation semantics, delivery guarantees, and data quality expectations before proposing an end-to-end design. Address both the streaming path for fresh analytics and the batch path for correction, replay, model training, and long-term reporting.