Answers: what most likely broke this store's checkout or payment path, what argues against each explanation, and how to tell whether a fix actually held. Joins the store's own privacy-safe signals — order status over time, order-status transitions, order-note reason codes, gateway and webhook health, scheduler backlog, checkout page health, recent plugin/theme/core changes — against public release and issue evidence, on one timeline. Every answer reports which signal families this store could and could not report, because a family that cannot be collected is not a family that is fine. Returns up to three ranked hypotheses, each with the observations behind it, independent public sources where they exist, counterevidence, what remains unknown, safe next steps, and a verification plan. Returns abstained and charges nothing when the snapshot is stale, coverage is thin, or the signals do not support any cause — an unsupported guess during an outage is worse than no answer. Free while in beta. Call get_checkout_health_snapshot first.