1. Ensure you are using v5.0.6 of the app or above

2. Open layout/theme.liquid via the Shopify theme editor 

3. Locate the following line of code

enableQtySelectors: true,

4. Copy and paste the following code 

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

5. Click Save 

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