Extension Code: Snapchat integration steps

Go to the App > More > Integrations: Extension Code
Click and view "Extension Code developer guides and samples"
Check disclaimer "I have read the App Extension developer guides and understand the risks of Extension code."
Click "Change"
5. Replace YOUR_SNAPCHAT_UID, paste code and click Save.

The below sample tracks "Start Checkout" and "Purchase" events:

(function(e,t,n){if(e.snaptr)return;var a=e.snaptr=function()
{a.handleRequest?a.handleRequest.apply(a,arguments):a.queue.push(arguments)};
a.queue=[];var s='script';r=t.createElement(s);r.async=!0;
r.src=n;var u=t.getElementsByTagName(s)[0];
u.parentNode.insertBefore(r,u);})(window,document,
'https://sc-static.net/scevent.min.js');

snaptr('init', 'YOUR_SNAPCHAT_UID');

itc.addEventHandler('InitiateCheckout', function(payload, additional) { 
  snaptr('track', 'PAGE_VIEW');
  snaptr('track', 'START_CHECKOUT');
});

itc.addEventHandler('Purchase', function(payload, additional) {
  snaptr('track', 'PURCHASE', {
    currency: payload.currency,
    price: additional.total,
    transaction_id: additional.transaction_id
  });
});

6. Verify by placing a test checkout using Funnel > Preview

References:
https://businesshelp.snapchat.com/en-US/article/purchase-event

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