Shopify: Track purchased with FB Pixel & Google Analytics (run one time, detailed data)

shopify_checkout_conversion_tracking.liquid

{% if first_time_accessed %}
 <script>
fbq('track', 'Purchase', {
  contents: [
      {% for line_item in line_items %}
      {
        'id': '{{ line_item.sku }}',
        'quantity': {{ line_item.quantity }},
        'item_price': {{ line_item.line_price | money_without_currency }}
      },
      {% endfor %}
      ],
  content_type: 'product',
  value: {{ total_price | money_without_currency }},
  currency: '{{ shop.currency }}'
});

ga('ec:setAction', 'purchase', {
  'id': '{{ order_number }}',
  'affiliation': 'Store Name - Source',
  'revenue': '{{ total_price | money_without_currency }}',
  'tax': '{{ tax_line.price | money_without_currency }}',
  'shipping': '{{ shipping_method.price | money_without_currency }}',
});
</script>
{% endif %}