E-Commerce 
Product Viewed 
Track a product view.
- $product - Product
Product List Viewed 
Track that a list of products was viewed. Should be used when a list of products has been shown to the user. Examples are category pages or search results.
$products - Products
Product Added 
Use when a product has been added to cart.
Product Removed 
Use when a product has been removed from the cart.
Cart Viewed 
Add when a cart is viewed. Could be a full page cart view, or a quick cart popup.
- $cart - Cart
Checkout Started 
Indicate that checkout has started.
- $cart - Cart
Checkout Step Viewed 
Indicate that a checkout step has been viewed.
- $cart - Cart
Checkout Step Completed 
Indicate that a checkout step has been completed.
- $cart - Cart
Order Completed 
Indicate that an order has been placed.
- $order - Order
Searched 
Indicate that a search was made.
- $search - Search
Discount Code Added 
Indicate that a search was made.
Discount Code Removed 
Indicate that a search was made.
Cart Abandoned 
Indicate that a search was made.
- $cart - Cart;