Check 1 / 12 MED impact In the full checklist
Enhanced ecommerce: view_item, add_to_cart, purchase
What this check is
The three events that make a funnel measurable are the product view, the add to cart and the purchase, each with the item parameters attached. Without them the analytics tool can report traffic but not where it stops.
How to implement it
Fire view_item on the product page, add_to_cart with the selected variant and value, and purchase on the confirmation step with the transaction id and the full item array. Use the same currency and value fields on every event so the numbers reconcile.
How to verify it
Walk through a purchase in a clean session and check each event in the real-time report: the item, variant, value and transaction id must all be populated, with one purchase event per order.
All 197 checks, one Google Sheet
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