Comprehensive GA4 Looker Studio template focused on marketing and e‑commerce performance. Visualizes sessions, revenue, device categories, and channel groups with clear comparisons and stacked views to expose channel mix and device impact. Highlights trends over time with event annotations to explain spikes and drops. Organized sections cover basic, enhanced, content, geo, and goal charts to surface insights from acquisition to revenue. Ideal for marketers and analysts who need quick, actionable visibility into traffic, conversions, and growth drivers.