"GA4 ecommerce events are firing — but I still can't tell where customers are dropping off." This is the most frequent question I hear from EC operators who finished setup but stalled before turning numbers into fixes. Setup is done; reading the numbers as fix-driving signals is not. This article walks through how to visualize drop-offs from view to purchase stage-by-stage in GA4, and how to pick the right action — in a three-layer structure of setup HOW, interpretation WHY, and improvement ACTION. TL;DR Build the funnel in 5 stages : view → add-to-cart → checkout start → payment info → purchase. Stage-level drop-off makes the leaking step obvious Read numbers in two axes : industry comparison + stage comparison. Compare against industry-typical rates, not absolute values. The biggest stage-to-stage gap is where to focus Match the action to the stage : view→cart is a landing page issue, cart→checkout is shipping/stock, checkout→purchase is form length / payment options.…