title: GTM enhanced ecommerce : implement Add to Cart function
body: <p>I'm struggling from weeks now to implement the Add to Cart function with Google Tag Manager on my Prestashop website.</p>
  
  <p>I do have transactions details and impressions pages, but I don't understand how to configure Add to Cart. Following Google instructions, here what I've done :<br>
  -For the tag, I just took the same instructions than in Google Documentation.
  -The trigger: <a href="http://i.stack.imgur.com/nS2ol.png" rel="nofollow">trigger-image</a></p>
  
  <p>I guess another thing has to be enter instead of "addToCart" field. I tried to trigger the tag with a click event on my addtocart class button, but I just had the data of an event, I never had the "add" action in my data layer.  </p>
  
  <p>Where am I wrong ?</p>
  
  <p>I'm working on the basic demo PrestaShop website.</p>
  
  <p>Any help would be really useful ! </p>
  
  <p>Thanks</p>