01_enhanced_ecommerce_datalayer.js

//no plugin needed but you need to set up the datalayer
var dataLayer = window.dataLayer = window.dataLayer || []; dataLayer.push({ ... });

02_Measuring Product Impressions.js

<script>
// Measures product impressions and also tracks a standard pageview for the tag configuration.
// Product impressions are sent by pushing an impressions object containing one or more impressionFieldObjects.
//  Configuration 
//  Tag type : Universal Analytics
//  Track type : Pageview
//  Enable Enhanced Ecommerce Features: true
//  Use Data Layer: true
//  Basic Settings - Document Path: {{url path}}
//  Firing Rule: {{event}} equals gtm.dom
dataLayer.push({
  'ecommerce': {
    'currencyCode': 'EUR',                       // Local currency is optional.
    'impressions': [
     {
       'name': 'Triblend Android T-Shirt',       // Name or ID is required.
       'id': '12345',
       'price': '15.25',
       'brand': 'Google',
       'category': 'Apparel',
       'variant': 'Gray',
       'list': 'Search Results',
       'position': 1
     },
     {
       'name': 'Donut Friday Scented T-Shirt',
       'id': '67890',
       'price': '33.75',
       'brand': 'Google',
       'category': 'Apparel',
       'variant': 'Black',
       'list': 'Search Results',
       'position': 2
     }]
  }
});
</script>

03_Measuring Product Clicks.js

//Measure clicks on product links by pushing a click action to the data layer, 
//along with a productFieldObject to represent the clicked product, as in this example:
//configuration:
//Tag type : Universal Analytics
//Track type : Event
//Event Category: Ecommerce
//Event Action: Product Click
//Enable Enhanced Ecommerce Features: true
//Use Data Layer: true
//Basic Settings - Document Path: {{url path}}
//Firing Rule: {{event}} equals productClick

<script>
/**
 * Call this function when a user clicks on a product link. This function uses the event
 * callback datalayer variable to handle navigation after the ecommerce data has been sent
 * to Google Analytics.
 * @param {Object} productObj An object representing a product.
 */
function(productObj) {
  dataLayer.push({
    'event': 'productClick',
    'ecommerce': {
      'click': {
        'actionField': {'list': 'Search Results'},      // Optional list property.
        'products': [{
          'name': productObj.name,                      // Name or ID is required.
          'id': productObj.id,
          'price': productObj.price,
          'brand': productObj.brand,
          'category': productObj.cat,
          'variant': productObj.variant,
          'position': productObj.position
         }]
       }
     },
     'eventCallback': function() {
       document.location = productObj.url
     }
  });
}
</script>

04_Measuring Views of Product Details.js

<script>
//configuration
//Tag type : Universal Analytics
//Track type : Pageview
//Enable Enhanced Ecommerce Features: true
//Use Data Layer: true
//Basic Settings - Document Path: {{url path}}
//Firing Rule: {{event}} equals gtm.dom

// Measure a view of product details. This example assumes the detail view occurs on pageload,
// and also tracks a standard pageview of the details page.
dataLayer.push({
  'ecommerce': {
    'detail': {
      'actionField': {'list': 'Apparel Gallery'},    // 'detail' actions have an optional list property.
      'products': [{
        'name': 'Triblend Android T-Shirt',         // Name or ID is required.
        'id': '12345',
        'price': '15.25',
        'brand': 'Google',
        'category': 'Apparel',
        'variant': 'Gray'
       }]
     }
   }
});
</script>

05_Measuring Additions from a Shopping Cart.js

//Adding a Product to a Shopping Cart
// Measure adding a product to a shopping cart by using an 'add' actionFieldObject
// and a list of productFieldObjects.
dataLayer.push({
  'event': 'addToCart',
  'ecommerce': {
    'currencyCode': 'EUR',
    'add': {                                // 'add' actionFieldObject measures.
      'products': [{                        //  adding a product to a shopping cart.
        'name': 'Triblend Android T-Shirt',
        'id': '12345',
        'price': '15.25',
        'brand': 'Google',
        'category': 'Apparel',
        'variant': 'Gray',
        'quantity': 1
       }]
    }
  }
});

06_Measuring Removals from a Shopping Cart.js

//configuration
//Tag type : Universal Analytics
//Track type : Event
//Event Category: Ecommerce
//Event Action: Remove from Cart
//Enable Enhanced Ecommerce Features: true
//Use Data Layer: true
//Basic Settings - Document Path: {{url path}}
//Firing Rule: {{event}} equals removeFromCart
// Measure the removal of a product from a shopping cart.
dataLayer.push({
  'event': 'removeFromCart',
  'ecommerce': {
    'remove': {                               // 'remove' actionFieldObject measures.
      'products': [{                          //  removing a product to a shopping cart.
          'name': 'Triblend Android T-Shirt',
          'id': '12345',
          'price': '15.25',
          'brand': 'Google',
          'category': 'Apparel',
          'variant': 'Gray',
          'quantity': 1
      }]
    }
  }
});

07_Measuring Promotion Impressions.js

<script>
// An example of measuring promotion views. This example assumes that
// information about the promotions displayed is available when the page loads.
//configuration
//Tag type : Universal Analytics
//Track type : Pageview
//Enable Enhanced Ecommerce Features: true
//Use Data Layer: true
//Basic Settings - Document Path: {{url path}}
//Firing Rule: {{event}} equals gtm.dom
dataLayer.push({
  'ecommerce': {
    'promoView': {
      'promotions': [                     // Array of promoFieldObjects.
       {
         'id': 'JUNE_PROMO13',            // ID or Name is required.
         'name': 'June Sale',
         'creative': 'banner1',
         'position': 'slot1'
       },
       {
         'id': 'FREE_SHIP13',
         'name': 'Free Shipping Promo',
         'creative': 'skyscraper1',
         'position': 'slot2'
       }]
    }
  }
});
</script>

08_Measuring Promotion Clicks.js

<script>
/**
 * Call this function when a user clicks on a promotion. This function uses the eventCallBack
 * datalayer variable to handle navigation after the ecommerce data is sent to Google Analytics.
 *
 * @param {Object} promoObj An object representing an internal site promotion.
 */
function onPromoClick(promoObj) {
  dataLayer.push({
    'event': 'promotionClick',
    'ecommerce': {
      'promoClick': {
        'promotions': [
         {
           'id': promoObj.id,                         // Name or ID is required.
           'name': promoObj.name,
           'creative': promoObj.creative,
           'position': promoObj.pos
         }]
      }
    },
    'eventCallback': function() {
      document.location = promoObj.destinationUrl;
    }
  });
}
</script>

09_Measuring a Checkout.js

<script>
/**
 * A function to handle a click on a checkout button. This function uses the eventCallback
 * data layer variable to handle navigation after the ecommerce data has been sent to Google Analytics.
 */
function onCheckout() {
  dataLayer.push({
    'event': 'checkout',
    'ecommerce': {
      'checkout': {
        'actionField': {'step': 1, 'option': 'Visa'},
        'products': [{
          'name': 'Triblend Android T-Shirt',
          'id': '12345',
          'price': '15.25',
          'brand': 'Google',
          'category': 'Apparel',
          'variant': 'Gray',
          'quantity': 1
       }]
     }
   },
   'eventCallback': function() {
      document.location = 'checkout.html';
   }
  });
}
</script>

10_Measuring Checkout Options.js

<script>
/**
 * A function to handle a click leading to a checkout option selection.
 */
function onCheckoutOption(step, checkoutOption) {
  dataLayer.push({
    'event': 'checkoutOption',
    'ecommerce': {
      'checkout_option': {
        'actionField': {'step': step, 'option': checkoutOption}
      }
    }
  });
}
</script>

11_Measuring Purchases.js

<script>
// Send transaction data with a pageview if available
// when the page loads. Otherwise, use an event when the transaction
// data becomes available.
dataLayer.push({
  'ecommerce': {
    'purchase': {
      'actionField': {
        'id': 'T12345',                         // Transaction ID. Required for purchases and refunds.
        'affiliation': 'Online Store',
        'revenue': '35.43',                     // Total transaction value (incl. tax and shipping)
        'tax':'4.90',
        'shipping': '5.99',
        'coupon': 'SUMMER_SALE'
      },
      'products': [{                            // List of productFieldObjects.
        'name': 'Triblend Android T-Shirt',     // Name or ID is required.
        'id': '12345',
        'price': '15.25',
        'brand': 'Google',
        'category': 'Apparel',
        'variant': 'Gray',
        'quantity': 1,
        'coupon': ''                            // Optional fields may be omitted or set to empty string.
       },
       {
        'name': 'Donut Friday Scented T-Shirt',
        'id': '67890',
        'price': '33.75',
        'brand': 'Google',
        'category': 'Apparel',
        'variant': 'Black',
        'quantity': 1
       }]
    }
  }
});
</script>

12_Measuring Full Refunds.js

<script>
// Refund an entire transaction by providing the transaction ID. This example assumes the details
// of the completed refund are available when the page loads:
dataLayer.push({
  'ecommerce': {
    'refund': {
      'actionField': {'id': 'T12345'}         // Transaction ID. Required for purchases and refunds.
    }
  }
});
</script>

13_Measuring Partial Refunds.js

<script>
// Measure a partial refund by providing an array of productFieldObjects and specifying the ID and
// quantity of each product being returned. This example assumes the partial refund details are
// known at the time the page loads:
dataLayer.push({
  'ecommerce': {
    'refund': {
      'actionField': {'id': 'T12345'},        // Transaction ID.
      'products': [
            {'id': 'P4567', 'quantity': 1},   // Product ID and quantity. Required for partial refunds.
            {'id': 'P8901','quantity': 2}
       ]
     }
  }
});
</script>

14_Combining Impressions and Actions.js

<script>
dataLayer.push({
  'ecommerce': {
    'impressions': [
     {
       'name': 'Triblend Android T-Shirt',        // Name or ID is required.
       'id': '12345',
       'price': '15.25',
       'brand': 'Google',
       'category': 'Apparel',
       'variant': 'Gray',
       'list': 'Related Products',
       'position': 1
     },
     {
       'name': 'Donut Friday Scented T-Shirt',
       'id': '67890',
       'price': '33.75',
       'brand': 'Google',
       'category': 'Apparel',
       'variant': 'Black',
       'list': 'Related Products',
       'position': 2
     }],
    'detail': {
      'actionField': {'list': 'Apparel Gallery'}  // 'detail' actions have an optional list property.
      'products': [{
        'name': 'Triblend Android T-Shirt',       // Name or ID is required.
        'id': '12345',
        'price': '15.25',
        'brand': 'Google',
        'category': 'Apparel',
        'variant': 'Gray'
       }]
     }
  }
});
</script>