Setting up Affiliate Tracking for Google Tag Manager (GTM)

 

Grin's affiliate integration uses JS tracking scripts loaded on your storefront pages. If you are using a native integration (Shopify, WooCommerce, Magento, SFCC) these scripts are installed either fully or in part via the respective Grin app/plugin/extension/module for your native store, but you may wish to install these scripts using Google Tag Manager instead for more centralized management of your storefront's installed scripts. Additionally for non-natively integrated storefronts GTM may be your primary way of installing scripts or the best option for you as well.

 

There are 2 scripts that need to be installed:

 

1. The SDK tracking script. This script:

  • (Required) Must be configured in GTM to execute on any storefront page that you will be pointing your affiliate links to target as landing pages
  • (Required) Must be configured in GTM on your order Thank You page
  • (Optional, but highly recommended) should be installed on any other storefront pages that you wish to track visits to
  • (Required) Leverages query string parameters passed through from the affiliate link. Those parameters must be preserved through the 1st time the script loads for a given session. If your site strips them before the script initially fires, tracking will not succeed.
  • Does not require any kind of modification
<script>
(function() { Grin = window.Grin || (window.Grin = []); var s = document.createElement('script');
s.type = 'text/javascript';
s.async = true;
s.src = 'https://d38xvr37kwwhcm.cloudfront.net/js/grin-sdk.js'; var x = document.getElementsByTagName('script')[0];
x.parentNode.insertBefore(s, x); })();
</script>

 

2. The conversion script. This script:

  • (Required) Must be updated to include your GTM-compatble variables for amount, order number and currency
  • (Required) Must be configured in GTM to execute on the order Thank You page
<script>
// set the GTM variable for subtotal (before taxes and shipping, after discounts) amount here
var amount = 'INSERT GTM VARIABLE FOR SUBTOTAL';

// set the GTM variable for order number
var order_number = 'INSERT GTM VARIABLE FOR ORDER NUMBER';

// set the GTM variable for currency code in ISO 4217 format
var currency = 'INSERT GTM VARIABLE FOR ORDER NUMBER';

// send the conversion to Grin
Grin = window.Grin || (window.Grin = []);Grin.push(['conversion', amount, {order_number: order_number, currency: currency}]);
</script>

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