Does anyone know how to find the code for Shopify's GA Integration? I wanted to inspect how the Events were identifying triggers. I recently had a third party app claim their data flow stopped because an attribute was removed from the add to cart button. I wanted to double check if I changed the id attribute it would affect the GA event triggers from Shopify's GA integration.
I suggest you use Google Chrome's analytics debugger extension to dig deep into event firing. It lets you see what events get pushed. You may also find helpful my complete analytics guide for Shopify.
What is the third party app?