Shopify DataLayer Checkout

shopify.datalayer.html

{% if first_time_accessed %}
<script>
(function(dataLayer){

    var customer_type = ({{customer.orders_count}} > 1) ? 'repeatcustomer' : 'newcustomer';
    var discounts = "{{ order.discounts | map: 'code' | join: ',' | upcase}}";

    function strip(text){
        return text.replace(/\s+/, ' ').replace(/^\s+/, '').replace(/\s+$/, '');
    }

    function firstof(){
        for(var i = 0; i < arguments.length; i++){
            if(arguments[i]) return arguments[i];
        }
        return null;
    }

    var products = [];
    {% for line_item in order.line_items %}
    products.push({
        'id': firstof(strip('{{line_item.sku}}'), strip('{{line_item.product_id}}')),
        'name': strip('{{line_item.product.title}}'),
        'category': strip('{{line_item.product.type}}'),
        'brand': strip('{{line_item.vendor}}'),
        'variant': strip('{{line_item.variant.title}}'),
        'coupon': "{{ line_item.discounts | map : 'code' | join: ',' | upcase}}",
        'price': {{line_item.price | times: 0.01}},
        'quantity': {{line_item.quantity}}
    });
    {% endfor %}

    dataLayer.push({
        'event': 'checkoutComplete',
        'customerType': customer_type,
        'ecommerce': {
            'currencyCode': '{{shop.currency}}',
            'purchase': {
                'actionField': {
                    'id': '{{order.order_number}}',
                    'affiliation': strip('Shopify {{shop.name}}'),
                    'revenue': {{order.total_price | times: 0.01}},
                    'tax': {{order.tax_price | times: 0.01}},
                    'shipping': {{order.shipping_price | times: 0.01}},
                    'coupon': discounts
                },
                'products': products
            }
        }
    });

    setTimeout(function(){
        // Clear the ecommerce data for subsequent hits.
        dataLayer.push({ 'ecommerce': null });
    }, 3);

}(window.dataLayer = window.dataLayer || []));
</script>
{% endif %}


<script>
function containsGTMStart(dl){
    var i = 0;
    dl.map(function(e){ if('gtm.start' in e) i++; });
    return !!i;
}
(function(w,d,s,l,i){
    w[l]=w[l]||[];
    // attempts to prevent GTM from loading twice.
    if(containsGTMStart(w[l])) return false;
    w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});
    var f=d.getElementsByTagName(s)[0],
        j=d.createElement(s),
        dl=l!='dataLayer'?'&l='+l:'';
    j.async=true;
    j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;
    f.parentNode.insertBefore(j,f);
})(window,document,'script','dataLayer','GTM-XXXXX');
</script>

Note: I believe this depends on checkout.liquid. Unfortunately, checkout.liquid will be deprecated on August 13, 2024 and store owners will need to upgrade to Checkout Extensibility before then.

After upgrading, you will no longer have access or be able to edit the checkout.liquid file.

Reference: https://shopify.dev/docs/themes/architecture/layouts/checkout-liquid

To add customer events via GTM, refer to this page https://help.shopify.com/en/manual/promoting-marketing/pixels/custom-pixels/gtm-tutorial

Web Pixels Overview: https://help.shopify.com/en/manual/promoting-marketing/pixels/overview

I am not editing the checkout.liquid to run the script.

Hi @chr1s1

You've got some good code here. I read your instructions above regarding where to add the code.
Unfortunately, the Order Processing -> Additional Scripts input textarea is gone.

There are now two "Additional Scripts" areas.
One is under Post-purchase page section.
The second is under Order status page section.

With checkout extensibility, the entire checkout process is sandboxed. You're only able to push customer events data once you've completed your checkout and arrive at the order status page.

Your script would be added to the Order status page section > Additional Scripts.
Correct?

Hi @chr1s1

Instead of CustomerType: NewCustomer

Is it possible to use a boolean:

New customer: false

Depending on the {{customer.orders_count}} ?

As in: if {{customer.orders_count}} is greater than 0, newcustomer: false
if {{customer.orders_count}} equals 0, newcustomer: true

Has Anyone tried this?

Thank you very much and kind regards