A fixed-scope review that turns one decision-critical product funnel into explicit metric definitions, validated denominators, cohort-aware findings, and a prioritized measurement plan. I assess whether the supplied evidence supports a product pattern, a tracking or definition problem, or an explicitly unresolved result.

Scope: one digital product; one primary funnel with up to seven ordered stages; one supplied export or reproducible query result with up to 500,000 event rows; one identity model; up to three agreed cohort dimensions; conversion, abandonment, time-to-convert, and stage latency; one retention view when supported; revenue-adjacent metrics only when authoritative fields and definitions are supplied.

You receive a metric dictionary, event/data-contract review, funnel table, supported cohort comparisons, a findings memo separating observations from limitations and hypotheses, a prioritized measurement and product-question plan, and one 30-minute findings call or equivalent written Q&A. Delivery is within 5 business days after complete inputs. One factual-correction or clarification round is included.

This audit does not include tracking implementation, dashboard construction, warehouse modeling, attribution, forecasting, accounting, causal claims, A/B-test analysis, or a guarantee of growth. Provide the minimum necessary fields and stable pseudonymous IDs—no names, emails, phone numbers, payment-card data, credentials, or message content.