Google Analytics Enhanced Ecommerce :
This module sends a lot more information than classic Google Analytics (or Universal Analytics), so you can have more accurate ecommerce reports.
Know more about your e-commerce : Shopping and purchasing behavior, Economic performance, Merchandising success, Product Attribution...
Why use Google Tag manager ?
"A Tag Management System (TMS) replaces hard-coded tags that are used for marketing, analytics, and testing on a website, with dynamic tags that are easier to implement and update."A tag Management system also increases your Page speed assembling all your tags and load them asynchronously.
For more information : https://support.google.com/analytics/answer/6163796?hl=en
Why use our module ?
Our module generates a very complete datalayer so you can make the most of Google Tag Manager.
Moreover, the installation is very straightforward (1 clic in Prestashop, and a configuration file for GTM)