dataLayer_ga4_view_item

dataLayer.push({ ecommerce: null });  // Clear the previous ecommerce object.
dataLayer.push({
  event: "view_item",
  ecommerce: {
       items: [
    {
         item_id: "SKU_12345",
         item_name: "Stan and Friends Tee",
         affiliation: "Google Merchandise Store",
         coupon: "SUMMER_FUN",
         currency: "USD",
         discount: 2.22,
         index: 0,
         item_brand: "Google",
         item_category: "Apparel",
         item_category2: "Adult",
         item_category3: "Shirts",
         item_category4: "Crew",
         item_category5: "Short sleeve",
         item_list_id: "related_products",
         item_list_name: "Related Products",
         item_variant: "green",
         location_id: "L_12345",
         price: 9.99,
         quantity: 1
    }
    ]
  }
});