GA4 - purchase - Whoowine

window.dataLayer = window.dataLayer || [];
window.dataLayer.push({
   event: 'purchase',           // name of the event. In this case, it always must be purchase
   ecommerce: {
currency: 'EUR',
      value: '56.70',
      shipping: '4.95'
      transaction_id: '1758',                   // insert an actual transaction ID
      customer_email: 'test@example.com',           // customer email
      customer_telephone: '+32494222436',           // customer telephone number (must always contain country code)
      coupon: 'blackfriday',
    items: [{
      item_name: 'Mesquida Mora - Sincronia Negre 2019',    // insert a product name
      item_id: '7967292883170',         // insert an actual product ID
      price: '38.80',                   // insert an actual product price.
      item_brand: 'Whoowine',
      item_category: 'Wijnfles',        // overkoepelende wijncategorie
      item_category2: 'Rood',           // wijnsoort
      item_category3: 'Spanje',         // wijnland
      quantity: '1'
    },{
      item_name: 'La Tordera - Alnè Extra Brut',         // insert a product name
      item_id: '7967292883171',       // insert an actual product ID
      price: '12.95',                // insert an actual product price.
      item_brand: 'Whoowine',
      item_category: 'Wijnfles',        // overkoepelende wijncategorie
      item_category2: 'Mousserend',  // wijnsoort
      item_category3: 'Italië',        // wijnland
      quantity: '1'
    }]
  }
});