Measurement spine
GA4 / server events, CRM join, and a single definition of lead, opportunity, and revenue. If this is wrong, every dashboard lies.
Growth

GA4 / server events, CRM join, and a single definition of lead, opportunity, and revenue. If this is wrong, every dashboard lies.
Hypothesis backlog, test design, and ship cadence. We test offers and friction, not button colors in isolation.
From first session to paid invoice: where people drop, which step is worth fixing, which step is a sales problem.
Holdouts, geo splits, and platform lift when spend is large enough that last-click theater is expensive.
Effectiveness