Your question is First Checks for Metric Drops. 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).
You are monitoring a core product dashboard and notice that a key metric has suddenly fallen. For example, weekly answer sessions on Quora dropped sharply versus the prior period, and the team needs to know whether this is a real product issue, a measurement problem, or a temporary shift tied to a recent change. You need a clear way to decide what to check first before going deep.
What would you look at first if a key product metric suddenly dropped?