GA4 - purchase online topup- a1v1

window.dataLayer = window.dataLayer || [];
window.dataLayer.push({
  event: 'purchase',
  ecommerce: {
    currency: 'RSD',                           //Required. Transaction Currency - Type: string
    value: 200.00,                           //Transaction Revenue  - Type: number
    tax: 0.00,                              //Transaction Tax - Type: number
    shipping: 0.00,                            //Transaction Shipping - Type: number
    affiliation: 'onlinetopup',               //Optional. Transaction Affiliation - Type: string
    transaction_id: '1985_1675416726'                  //Required. Transaction ID - Type: string
    items: [{
      item_name: 'onlinetopup 200.00',     //Product Name - Type: string
      item_id: 'dopuna200',          //Product ID/SKU - Type: string
      price: 200.00,                              //Product price - Type: number
      currency: 'RSD',                             //Currency of the price that is collected - Type: string
      discount: 0.00,                              //Any discount associated with this product - Type: number
      item_brand: 'A1',                   //Product Brand - Type: string
      item_category: 'dopuna',           //Product Category - Type: string
      item_category2: 'dopuna200',            //Product Sub-Category 1 - Type: string
      quantity: 1                                  //Product quantity - Type: number
    }]
  }
});