GA4 - purchase - Cera

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: '25.00'
      transaction_id: '3550719',                   // insert an actual transaction ID
    items: [{
      item_name: 'Pairi Daiza',             // insert a product name
      item_id: '7967292883170',         // insert an actual product ID
      price: '25.00',                   // insert an actual product price.
      item_brand: 'Cera',
      item_category: 'reizen en uitstappen',
      item_category2: 'on-site',    // can you order on-site or off-site
      quantity: '1'
    }]
  }
});