Google Tag Manager with Google Analytics (v4)

Prerequisites 

1. Google Tag Manager and GA4 accounts

This guide only documents any steps needed to get credentials from Google Tag Manager. Your Tag Manager and GA4 accounts should be set up already. Learn more at Google: Set up GA4; Google Tag Manager with GA4

2. CMS Analytics feature enabled in CMS

If Analytics is not enabled, contact Commerce Vision.

To trigger the product click (select_item) event in GA4, check these setups:

• Product List Grid widget: zoned layouts are enabled for Products and Categories.
  (Pages & Templates → Products → Product List Grid widget)
  
• Items Recently Viewed widget is added to Home Page
  (Pages & Templates → Home Page → Items Recently Viewed widget)
• CrossSell/Upsell widgets: are added to Product Detail
  (Pages & Templates → Products → Product Detail page → CrossSell/Upsell widget)
• Campaign Slider: is added to Home Page
  (Pages & Templates → Home Page → Campaign Slider widget)

4. Enable Favourites for Prior Purchases:

For each shopper and visitor role you want tracked:

1. Go to Ecommerce → Users → Roles.
   
2. Select the Role, then click the Functions tab.
   
   
3. Find and tick Enable Customer Favourites.
   
   
4. Click OK. 
   
   
5. Repeat steps 1-4 for each required role.

Configure GA4 Analytics 

1. Select GA4 version

1. In the CMS, go to: Settings → Settings → Systems → Analytics.
   
   
2. With Analytics enabled on your site, click Configure.
   
   
3. In Analytics Feature Settings, toggle ON Enable Analytics.
   
   
4. In Analytics Version, select 'GA4'. TIP - GA4 should be selected if you are implementing Tag Manager for the first time.       
   
   
5. In Google Tag Manager ID, enter the Container ID from your Google Tag Manager account. 
   Example: 
   
   
   
6. When an ID is entered, the functions are displayed. TIP - To capture the basic properties of the shopper journey, tick Digital Remarketing. To include fine-grained properties of a range of shopper journeys, tick Enhanced eCommerce as well.
   
   - Digital Remarketing -  use Analytics with Google Tag Manager for remarketing tools such as Google Ads or for dynamic remarketing. In dynamic remarketing,  after they leave your site and continue to browse the internet, shoppers can be shown personalised ads based on products they purchased or viewed.
   - Enhanced Ecommerce - add this option to send fine-grained details about shopper behaviours on your site that goes beyond the transactional  (purchase) journey. As well as remarketing, this data produce more indepth reports on patterns of user activity, e.g., how users interact with specific products, where they go to on your site and where they go next, when they abandon their carts and leave your site.  
   - Enhanced Rich Snippet - add a code snippet that enhances search results visually, e.g., include ratings when a product's page is listed. See: Enhanced Rich Snippets
   
   
7. Click Save.  

2. Set template (optional)

This step is needed only if you do not want to use the default template supplied by CV ecommerce.

This template contains the code that outputs the Google Tag Manager code snippet onto every page. You can however use a custom template. 

Global or Role-based 

You can select to use a global template that includes all users or role-based ones.

Set Global template

To set a custom global template, go to the default templates admin page. Set the Opening Body Template to the default template or another template you created.

Set Role-based template

To set a role-based template, go to the role management admin page (see Templates tab). Set the Opening Body Template to the default template or another template you created.

Data Layer Testing

Google Tag Manager functions best when deployed alongside a data layer. A data layer is a JavaScript object that passes information from your ecommerce platform to your Tag Manager container. You can then use that information to populate variables and activate triggers in your tag configurations.

Digital Remarketing

Digital remarketing tags your site for online remarketing. Your store or products can be advertised to shoppers after they have left your store. This could be through Google Adwords or ads on Google-partnered sites as the shopper continues their online journey. You can also use dynamic remarketing, when ads are personalised to show products on pages visited by a shopper. By default, data from every page type is sent to Google. Some of these page types contain product value data based on products viewed and/or purchased by specific users.  You can untick any page types to be excluded from remarketing.

The data sent for page type are listed.

Remarketing data sample for a 'purchase' page 

{
    "event": "remarketing",
	"ecomm_pagetype": "purchase",
	"ecomm_prodid": ["ProductCode", "ProductCode"],
	"ecomm_totalvalue": "99.99",
	"google_conversion_value": "99.99"
}

See: Remarketing with Google Analytics 

Enhanced Ecommerce

Enhanced Ecommerce sends additional richer data about shoppers to Google Tag Manager. Instead of just basic transactional information, activities such as when shoppers add items to cart, when they remove items, when they abandon their carts and leave without purchasing, where they begin checkout, etc, are also collected. This data can be used to produce more insightful reports on site engagement, e.g., shopper behaviour patterns or conversion success rates on particular pages, search analytics, etc, as well as the ability to build more granular and complex audience segments for remarketing. 

(Enhanced) ecommerce data is pushed for nearly every event type on the website. How CV data fields match GA4 parameters and values are outlined below. 

Default value labels

• Event Name: enhancedEcomm 
• Cart URL: /cart
• Product Pricing: inc  (Change to exc to exclude tax)

Options

Detail Impression Use from List

Product Impression data is pushed whenever a list of products from a search is displayed, e.g., in search results, a category list, the user's favourites. 

In GA4, this is the view_item_list event. Data sent include the items object containing each product listed. 

Product/item event parameters and values

In GA4, product data are now under 'items' (ecommerce.items[ ])

item_category: "Apparel",
item_category2: "Adult",
item_category3: "Shirts",
item_category4: "Crew",
item_category5: "Short sleeve

List Types

Lists are used for product impressions, product clicks and add to cart tracking. The list type is populated in the item_list_name parameter to track the list the user was viewing.  

Products Viewed in a List example:

("event": "ecommerce", 
	"view_item_list", {
  	item_list_name: "Related products",
 	 items: [
    {
      item_id: "SKU_12345",
      item_name: "CV Tee",
      currency: "AUD",
      index: 1,
      item_brand: "CV",
      item_category: "Apparel",
      item_category2: "Adult",
      item_category3: "Shirts",
      item_category4: "Crew",
      item_category5: "Short sleeve",
      price: 10.00,
      }
{
      item_id: "SKU_12222",
      item_name: "CV Jacket",
      currency: "AUD",
      index: 2,
      item_brand: "CV",
      item_category: "Apparel",
      item_category2: "Adult",
      item_category3: "Jackets",
      item_category4: "Mens",
      item_category5: "Waterproof",
      price: 70.00,
      }   ]
});   ]
	}
}

select_item (Product Click)

Product Click data are pushed on any click of a product link, e.g., a product on a search results page or from the user's favourites list.

In GA4, the event is called select_item. Details of a clicked product are from the Product/Item event parameters.  

Select Item example:

("ecommerce", "select_item", {
  	item_list_name: "Related products",
	value: "20.00",
  	items: [
    {
      item_id: "SKU_12345",
      item_name: "CV Tee",
      currency: "AUD",
      index: 0,
      item_brand: "CV",
      item_category: "Apparel",
      item_category2: "Adult",
      item_category3: "Shirts",
      item_category4: "Crew",
      item_category5: "Short sleeve",
      item_list_name: "Related Products",
      price: 10.00,
      quantity: 2
    }
  ]
});

User_ID (user)

A shopper's data is pushed on every page of the site.  You can select to send only data for logged in shoppers.

• 'User_ID' = the user's unique identifier (database field = user.userid ) 

{
	"User_ID": "user userid"
}

Questionnaire

Questionnaire data are only pushed for non-widget-based questionnaires.

Since the URL does not change post submission, a virtual URL is pushed. (In contrast, widget-based questionnaires have a URL redirect post submission.)

{
	"virtualURL": "thank you URL"
}

begin_checkout (checkout steps & options)

In GA4, you need only specify 'Step 1' of checkout. Event name is 'begin_checkout'.  Tick 'Checkout Options' to include other details selected during checkout.

 begin_checkout example:

("ecommerce", "begin_checkout", {
  currency: "AUD",
  value: 20.00,
  items: [
    {
      item_id: "SKU_12345",
      item_name: "CV Tee",
      currency: "AUD",
      index: 0,
      item_brand: "CV",
      item_category: "Apparel",
      item_category2: "Adult",
      item_category3: "Shirts",
      item_category4: "Crew",
      item_category5: "Short sleeve",
      item_list_name: "Related Products",
      price: 10.00,
      quantity: 2
    }
  ]
});

Purchase

Tick to include data about the products purchased.

When an order is submitted, the purchase event pushes the transaction details and details of each product. 

In GA4, the purchase event has transaction (payment) +  items purchased. There is no separate payment event.

Purchase example:

"ecommerce", "purchase", "transaction" {
    transaction_id: "100000000",
    value: 25.99,
    tax: 4.90,
    shipping: 5.99,
    currency: "AUD",},
    items: [
     {
      item_id: "SKU_12345",
      item_name: "CV Tee",
      currency: "AUD",
      index: 0,
      item_brand: "CV",
      item_category: "Apparel",
      item_category2: "Adult",
      item_category3: "Shirts",
      item_category4: "Crew",
      item_category5: "Short sleeve",
      item_list_name: "Related Products",
      price: 10.00,
      quantity: 1
    },
    {
      item_id: "SKU_12346",
      item_name: "CV Grey Women's Tee",
      currency: "AUD",
      index: 1,
      item_brand: "CV",
      item_category: "Apparel",
      item_category2: "Adult",
      item_category3: "Shirts",
      item_category4: "Crew",
      item_category5: "Short sleeve",
      item_list_name: "Related Products",
      price: 10.00,
      quantity: 1
    }]
});

Login Success 

Login Success data are pushed on any successful user login. 

• event = "login"

• method = name of the widget used to initiate the login 

GA4 example:

("ecommerce", "login", {
  method: "widget name"
});

Logout Success

Logout Success data is pushed on any successful user logout.  

• Event = "logout"

• method = 'widgetName' (widget used to initiate the logout) 

{
	"event": "logout",
	"widgetName": "widget name"
}

add_to_cart  (Add to Cart)

Add To Cart data are pushed every time a shopper successfully adds a product to their cart. 

add_to_cart example

("ecommerce", "add_to_cart", {
  currency: "AUD",
  value: 20.00,
  items: [
    {
      item_id: "SKU_12345",
      item_name: "CV Tee",
      currency: "AUD",
      index: 0,
      item_brand: "CV",
      item_category: "Apparel",
      item_category2: "Adult",
      item_category3: "Shirts",
      item_category4: "Crew",
      item_category5: "Short sleeve",
      item_list_name: "Related Products",
      price: 10.00,
      quantity: 2
    }
  ]
});

remove_from_cart (Remove from Cart)

Remove From Cart data are pushed whenever a product is successfully removed from the user's cart.

NOTE - This can be a whole line deletion, or a decrease in quantity. Both actions are sent as 'Remove From Cart' data.

remove_from_cart example

 ("ecommerce", "remove_from_cart", {
  currency: "AUD",
  value: 20.00,
  items: [
    {
      item_id: "SKU_12345",
      item_name: "CV Tee",
      currency: "AUD",
      index: 0,
      item_brand: "CV",
      item_category: "Apparel",
      item_category2: "Adult",
      item_category3: "Shirts",
      item_category4: "Crew",
      item_category5: "Short sleeve",
      item_list_name: "Related Products",
      price: 10.00,
      quantity: 2
    }
  ]
});

Cart Updated

Cart Updates will push add_to_cart or remove_from_cart event event depending on product quantity changes:

• Quantity increase triggers an "add_to_cart" data push

• Quantity decrease triggers a "remove_from_cart" data push

Promotion Codes 

Promotion Code use automatically pushes event type and promotion code name: 

• successful promo code add - 'validPromoCode'

• failure of promo code add - 'invalidPromoCode'

• removal of promo code 'removedPromoCode'

{
	"event": "validPromoCode",
	"promoCode": "TWOFORONE"
}

{
	"event": "removedPromoCode",
	"promoCode": "XXXX"
}

View Order

View Order data is pushed when an order is viewed on the Order History / tracking page. The sales order number is sent.

{
	"virtualURL": "/TrackOrder/ViewOrder/Order Number"
}

View Template

View Template data is pushed when a saved template is viewed on the Order Templates page. The template name is sent.

{
	"virtualURL": "/OrderTemplates/Template Name"
}

Extend or Override Pushed Data

To push custom data or to override out-of-the-box inclusions, consult Commerce Vision. 

For Commerce Vision internal use only:

1. Determine the type of custom data required to push:

   • User

   • Product

   • Order

     
     

2. Include the new data by adding the field to the relevant JSON field group. 

   Data Type	Dictionary Table	JSON Field Group
   User	Primary Table: User Additional Tables: Role Customer	SiteTrackerUserData (or SiteTrackerUserData_RoleNamefor role-specific changes)
   Product	Product	SiteTrackerProductData (or SiteTrackerProductData_RoleName for role-specific changes)
   Order	Primary Table: ProntoSalesOrder Additional Tables: ProntoSalesOrderLine Product	SiteTrackerOrderData (or SiteTrackerOrderData_RoleName for role-specific changes)

3. Finally, construct the tracking code per the format below.

   • First parameter is the data to manipulate (e.g. "userDetail" in sample code)

   • Second parameter is the type of manipulation:

     • extend

     • override

   • The third parameter is the function that will perform the manipulation (e.g. "EmailAddress: data.EmailAddress" in sample code)

     • The data is the raw data that can be used for manipulation (and includes the additional data from the JSON field groups described above) 
       
       

       Sample Data Extension code

       $.cv.css.tracker.track("userDetail", "extend", function(data) {
       	return { EmailAddress: data.EmailAddress };
       });

Possible extension methods:

• userDetail

• pageType (this is for Digital Remarketing)

• productImpressions

• productClick

• questionnaire

• checkout

• checkoutOption

• transactionProducts

• loginSuccess

• logoutSuccess

• addToCart

• removeFromCart

• promoCodes

• viewOrder

• viewTemplate

Enhanced Rich Snippets

You can add rich snippets to include key summary details about a website page when it displays in Google search results. An example might be to show ratings for a product's page on your site.   

Learn more: https://developers.google.com/search/blog/2009/05/introducing-rich-snippets

Related Resources

• Page:
  Google API Address Validation
• Page:
  Google Tag Manager with Google Analytics (v4)
• Page:
  Google Tag Manager with UA & GA4
• Page:
  Google Tag Manager & Analytics
• Page:
  Google Sign In