1. Ensure you are using v4.1.1 of the app or above

2. Open assets/theme.js.liquid via the Shopify theme editor 

3. Locate the following line of code

if (window.Shopify && Shopify.StorefrontExpressButtons) {

4. Copy and paste the following code 

if (window.Zapiet && window.ZapietCachedSettings) {
   Zapiet.start(ZapietCachedSettings);
}

5. Click Save 

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