For attribution of purchases to work properly, the product ID used in
addToCart events must be the same type of id that is
returned in the displays by our API as
product_id. For an example of valid
product IDs, see the bottom table on the “Tracking status” tab on
Every time after navigating to a page representing a product on your website, you need to send a
setProductId event to register which product id is currently viewed.