PrestaShop - Enhanced Ecommerce

ga('create', 'UA-XXXXX-Y');
ga('require', 'ec');

ga('ec:addImpression', {
  'id': 'P12345',                   // Product details are provided in an impressionFieldObject.
  'name': 'Android Warhol T-Shirt',
  'category': 'Apparel/T-Shirts',
  'brand': 'Google',
  'variant': 'black',
  'list': 'Search Results',
  'position': 1                     // 'position' indicates the product position in the list.
});

ga('ec:addImpression', {
  'id': 'P67890',
  'name': 'YouTube Organic T-Shirt',
  'type': 'view',
  'category': 'Apparel/T-Shirts',
  'brand': 'YouTube',
  'variant': 'gray',
  'list': 'Search Results',
  'position': 2
});

ga('send', 'pageview');              // Send product impressions with initial pageview.