What is Data Layer and how to use it?

What is Data Layer and how to use it? What is Data Layer?A data layer is an object that contains all of the information that you want to pass to Tag Management system such as Google Tag Manager. Data Layer is an additional layer that stays top of your page to provide all necessary information for tracking purpose. Such in ecommerce it is used to track the accurate data like which product sold, total amount, order id and other information. …