Ecommerce & Shopify: Recap And Verify

5 questions. Answer all of them, then submit; you need 4 of 5 to pass.

1. 1. Which parameter lets GA4 deduplicate a purchase that gets reported twice?

   currency, since duplicates share a currencytransaction_id; GA4 dedupes purchases with the same id in reportingitem_id on the first itemvalue, since duplicates share a total
2. 2. In GA4's ecommerce funnel, what distinguishes view_item_list from select_item?

   view_item_list fires when a listing of products renders; select_item fires when the shopper clicks one of themThey are interchangeable names for the same stepview_item_list is for search results only; select_item is for category pages onlyselect_item fires on page load and view_item_list on click
3. 3. A customer returns one item from a three-item order. What does GA4 expect?

   A negative-value purchase eventDeleting the original purchase event from GA4A refund event that includes the items being refunded, so the refund is partialA refund event with no items, which always means a full refund of the order
4. 4. Why does a Shopify checkout usually need a custom pixel to record a GA4 purchase from GTM?

   Shopify's checkout blocks GA4's domain at the network levelThe checkout is locked down and your theme's GTM container does not run there, so a custom pixel subscribes to checkout_completed and pushes the dataGA4 cannot process purchases from hosted platformsShopify only supports Universal Analytics
5. 5. You are measuring a homepage banner campaign. Which events and parameters does GA4 expect?

   banner_view and banner_click with a slot parameterview_item and select_item with an item_banner flagpage_view with a promotion query parameterview_promotion and select_promotion, carrying promotion_id and creative_slot