view_item_list

window.dataLayer = window.dataLayer || [];
window.dataLayer.push({ ecommerce: null });
window.dataLayer.push({
  event: 'view_item_list',              // name of the event. In this case, it always must be view_item_list
  ecommerce: {
    items: [{                           // an array where all currently viewed products must be included
      item_name: 'Product 1',           // insert an actual product name
      item_id: 'product1',              // insert an actual product ID
      price: '11.99',                   // insert an actual product price. Number or a string. Don't include currency code
      item_brand: 'brand A',            // insert an actual product price
      item_category: 'Apparel',         // insert an actual product top-level category
      item_category2: 'T-shirt',        // if it is possible to drill down the categories (e.g. Apparel, then T-shirt, then Men), use item_category2, item_category3, etc. Can use from item_category up to item_category5
      item_variant: 'Blue',             // insert an actual product variant
      item_list_name: 'Search results', // insert the name of the list where the product is currently displayed
      item_list_id: 'search_results',   // insert the list id where the product is currently displayed
      index: 1,                         // insert product's position in that list
      quantity: '1'                     // product quantity. In case of view_item_list, it will usually be equal to 1
    },{
      item_name: 'Product 2',
      item_id: 'product2',
      price: '12.99',
      item_brand: 'Brand B',
      item_category: 'Category B',
      item_variant: 'Yellow',
      item_list_name: 'Search results',
      item_list_id: 'search_results',
      index: 2,
      quantity: '1'
    }]
  }
});