PayPal Smart buttons

<div id="paypal-button-container-P-NNNNN"></div>
<script src="https://www.paypal.com/sdk/js?client-id=XXXXXYYYYYZZZZZ&vault=true&intent=subscription" data-sdk-integration-source="button-factory"></script>
<script>
  paypal.Buttons({
      style: {
          shape: 'pill',
          color: 'silver',
          layout: 'vertical',
          label: 'paypal'
      },
      createSubscription: function(data, actions) {
        return actions.subscription.create({
          /* Creates the subscription */
          plan_id: 'P-NNNNN'
        });
      },
      onApprove: function(data, actions) {
        // THE TRACKING CODE GOES HERE
      }
  }).render('#paypal-button-container-P-NNNNN'); // Renders the PayPal button
</script>

// [Post Affiliate Pro](/ "Post Affiliate Pro offers a comprehensive affiliate software platform to manage multiple affiliate programs with ease. Enjoy no setup fees, 24/7 customer support, and a free 1-month trial. Ideal for small and large businesses, it features precise tracking, automated workflows, and customizable tools to boost your affiliate marketing success. Try it now and streamline your affiliate operations effortlessly!") integration code
var sale = PostAffTracker.createSale();
sale.setTotalCost('123.45'); // the price goes here
sale.setProductID('P-NNNNN'); // plan ID goes here
if (typeof data.subscriptionID !== 'undefined') {
    sale.setOrderID(data.subscriptionID);
} else {
    sale.setOrderID(data.orderID);
}
PostAffTracker.register();