diff --git a/tracker/shopify.js b/tracker/shopify.js
index 26070bb3..90c2632e 100644
--- a/tracker/shopify.js
+++ b/tracker/shopify.js
@@ -17,15 +17,185 @@ script.setAttribute('defer', '');
 // initialize script
 document.head.appendChild(script);
 
-analytics.subscribe('page_viewed', async event => {
-  lemonsquare.trackView(event.url, event.referrer);
-});
+// https://shopify.dev/api/pixels/customer-events
 
-// analytics.subscribe('product_viewed', async event => {
-//   fbq('track', 'ViewContent', {
-//     content_ids: [event.data.productVariant.id],
-//     content_name: event.data.productVariant.title,
-//     currency: event.data.productVariant.price.currencyCode,
-//     value: event.data.productVariant.price.amount,
-//   });
+// // Event structure
+// const event_structure = {
+//   id: 'id of the event',
+//   clientId: 'id of the client',
+//   name: 'name of the event',
+//   timestamp: 'timestamp of the event',
+//   context: {
+//     window: {
+//       screenX: 0,
+//       screenY: 0,
+//       origin: 'the global origin of the window',
+//       location: {
+//         href: 'the entire url',
+//         hostname: '',
+//         search: '?',
+//         hash: '#',
+//         pathname: '/',
+//       },
+//     },
+//     document: {
+//       location: {
+//         // same as above
+//       },
+//       referrer: 'returns the URI of the page that linked to this page.',
+//       title: 'returns the title of the current page',
+//     },
+//     navigator: {
+//       language: 'returns the language of the browser',
+//       userAgent: 'returns the user-agent header sent by the browser to the server',
+//     },
+//   },
+// };
+
+// // page_viewed Event
+// const page_viewed = {
+//   // ...event_structure
+// };
+
+// analytics.subscribe('page_viewed', async event => {
+//   lemonsquare.trackView(event.url, event.referrer);
 // });
+
+// // product_viewed Event
+// const product_viewed = {
+//   // ...event_structure
+//   data: {
+//     productVariant: {
+//       id: 'globally unique identifier',
+//       image: {
+//         src: 'string',
+//       },
+//       price: {
+//         amount: 0,
+//         currencyCode: 'string',
+//       },
+//       product: {
+//         id: 'the id of the product',
+//         title: 'the title of the product',
+//         vendor: "the product's vendor name",
+//       },
+//       sku: 'The SKU (stock keeping unit) associated with the variant',
+//       title: "The product variant's title.",
+//     },
+//   },
+// };
+
+// analytics.subscribe('product_viewed', async event => {});
+
+// // product_added_to_cart event
+// const product_added_to_cart = {
+//   // ...event_structure
+//   data: {
+//     cartLine: {
+//       cost: {
+//         totalAmount: {
+//           amount: 0,
+//           currencyCode: 'string',
+//         },
+//       },
+//       merchandise: {
+//         // ...product_viewed.data.productVariant
+//       },
+//       quantity: 0,
+//     },
+//   },
+// };
+
+// analytics.subscribe('product_added_to_cart', async event => {});
+
+// // collection_viewed event
+// const collection_viewed = {
+//   // ...event_structure
+//   data: {
+//     collection: {
+//       id: 'globally unique identifier',
+//       title: 'the title of the collection',
+//     },
+//   },
+// };
+
+// analytics.subscribe('collection_viewed', async event => {});
+
+// // search_submitted event
+// const search_submitted = {
+//   // ...event_structure
+//   data: {
+//     searchResult: {
+//       query: 'the query string',
+//     },
+//   },
+// };
+
+// analytics.subscribe('search_submitted', async event => {});
+
+// // checkout_started event
+// const checkout_started = {
+//   // ...event_structure
+//   data: {
+//     checkout: {
+//       currencyCode: 'string',
+//       lineItems: [
+//         {
+//           quantity: 0,
+//           title: 'string',
+//           variant: {
+//             // ...product_viewed.data.productVariant
+//           },
+//         },
+//       ],
+//       order: {
+//         id: 'the id of the order',
+//       },
+//       shippingAddress: {
+//         city: 'string',
+//         country: 'string',
+//         countryCode: 'string',
+//         province: 'string',
+//         provinceCode: 'string',
+//       },
+//       subtotalPrice: {
+//         amount: 0,
+//         currencyCode: 'string',
+//       },
+//       totalTax: {
+//         amount: 0,
+//         currencyCode: 'string',
+//       },
+//       totalPrice: {
+//         amount: 0,
+//         currencyCode: 'string',
+//       },
+//     },
+//   },
+// };
+
+// analytics.subscribe('checkout_started', async event => {});
+
+// // payment_info_submitted event
+// const payment_info_submitted = {
+//   // ...event_structure
+//   data: {
+//     checkout: {
+//       // ...checkout_started.data.checkout
+//     },
+//   },
+// };
+
+// analytics.subscribe('payment_info_submitted', async event => {});
+
+// // checkout_completed event
+// const checkout_completed = {
+//   // ...event_structure
+//   data: {
+//     checkout: {
+//       // ...checkout_started.data.checkout
+//     },
+//   },
+// };
+
+// analytics.subscribe('checkout_completed', async event => {});