GA4 - add_to_wishlist

window.dataLayer = window.dataLayer || [];
window.dataLayer.push({
  event: 'add_to_wishlist',
  ecommerce: {
    items: [{
      item_name: 'Product 1',                    //Required. Product Name - Type: string
      item_id: 'mp1122',                        //Required. Product ID/SKU - Type: string
      price: '31.10',                           //Product price - Type: numeric
      item_brand: 'product brand',              //Product Brand- Type: string
      item_category: 'Apparel',                 //Product Category - Type: string
      item_category2: 'Coats',                  //Product Sub-Category 1 - Type: string
      item_category3: 'Wool',                   //Product Sub-Category 2 - Type: string
      item_category4: 'Unisex',                 //Product Sub-Category 3 - Type: string
      item_category5: 'cat5',                 //Product Sub-Category 4 - Type: string
      item_variant: 'Navy blue',                //Variant of other product like size, color et c - Type: string
      quantity: '1'                             //number of items - Type: integer
    }]
  }
});