Google Tag Manager Enhanced Ecommerce plugin for Sylius eCommerce Platform

composer require stefandoorn/google-tag-manager-enhanced-ecommerce-plugin

https://github.com/stefandoorn/google-tag-manager-plugin

Add to the bundle list in app/AppKernel.php:

new GtmEnhancedEcommercePlugin\GtmEnhancedEcommercePlugin(),

Configure the features you would like to use/not. Find a base configuration reference by running:

bin/console config:dump-reference GtmEnhancedEcommercePlugin

bin/console assets:install
bin/console sylius:install:assets
bin/console sylius:theme:assets:install

By default all features are enabled.

• purchases: Send purchases to GTM (https://developers.google.com/tag-manager/enhanced-ecommerce#purchases)
• product_impressions: Send impressions on product listings to GTM (https://developers.google.com/tag-manager/enhanced-ecommerce#product-impressions)
• product_detail_impressions: Send impression on product detail pages to GTM (https://developers.google.com/tag-manager/enhanced-ecommerce#details)
• product_clicks: Send click events on product links to GTM (https://developers.google.com/tag-manager/enhanced-ecommerce#product-clicks)
• cart: Send add to cart / remove from cart events to GTM (https://developers.google.com/tag-manager/enhanced-ecommerce#cart)
• checkout: Send checkout steps & selected options to GTM (https://developers.google.com/tag-manager/enhanced-ecommerce#checkout)

Make sure to check that the required 'sonata_block_render_events' template events are available. Check the src/Resources/config/features/*.yml & src/Resources/config/services.yml for the definitions.

This is only to be checked if you've been overriding templates yourselves.

• promotion_impressions: https://developers.google.com/tag-manager/enhanced-ecommerce#promo-impressions
• promotion_clicks: https://developers.google.com/tag-manager/enhanced-ecommerce#promo-clicks
• refunds: https://developers.google.com/tag-manager/enhanced-ecommerce#refunds

A 'productListType' variable is used to distinguish certain pages on which the products have been shown. From Sylius RC1 it defaults to the category name with a string prefix ('Category List'). Feel free to set your own naming in window.productListType after the default is set.

Because Sylius doesn't fire the sylius.<resource>.index yet (Sylius/Sylius#7305), make sure to listen in GTM on the event 'productImpressions' to get your data registered (use event action = 'impression' in GTM config).

To make this work, make sure to install the assets so the JS file will get loaded. Next to this, perform the following steps:

• Add the following REQUIRED data attributes to the links you want to track: ** data-id: ID of the product ** data-name: name of the product
• Add the following class to the 'a' tags to be tracked: ** Class: gtm-eh-track-product-click

Optionally you can add additional data attributes which will get inserted:

• price
• brand
• variant
• position

In case you want to set a specific value for 'actionField.list' (see GTM documentation), set window.actionFieldList to a string value. Or add data-action-field-list to the 'a' tag with a string value.

If none of the above suits your needs, just use the JS function yourself as defined in src/Resources/public/gtm.enhancedEcommerce.productClicks.js.

Normal link to product page:

<a href="{{ path('sylius_shop_product_show', {'slug': product.slug, '_locale': product.translation.locale}) }}" class="header sylius-product-name">{{ product.name }}</a>

Becomes:

<a data-id="{{ product.id}}" data-name="{{ product.name }}" href="{{ path('sylius_shop_product_show', {'slug': product.slug, '_locale': product.translation.locale}) }}" class="header sylius-product-name gtm-eh-track-product-click">{{ product.name }}</a>

In case you enable this feature, a JS method called 'enhancedEcommerceAddToCart' will be available. Make sure this gets fired after adding something to the cart. As it requires changes to templates, we only provide the JS method and let you handle the templating and triggers, as every webshop probably differs and it's hard to maintain.

The final triggering could be done by overriding the default sylius-add-to-cart.js and add in the onSuccess handler:

enhancedEcommerceAddToCart(gtmAddToCartProductInfo);

The gtmAddToCartProductInfo is set on the product page and can be extended with additional information that's missing by default; e.g. the price, variant, dimensions and metrics. The quantity defaults to 1.

Same goes for remove from cart. As it needs customisation to templates which are not easy to do as every theme is different, a JS method enhancedEcommerceRemoveFromCart is available.

Make sure to inject an object as from the GTM documentation, and you are good to go. You can override the default sylius-remove-from-cart.js and trigger this method in the onSuccess method.

The checkout steps are registered from the backend code. Based on the controller / method a certain step will be triggered and sent to GTM.

The checkout options are tracked through JS. The payment & shipping forms are being listened for submits, and at that moment the selected option will be sent to GTM. Keep this in mind when adjusting the checkout forms.