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-compatible 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 CURRENCY CODE';



// send the conversion to Grin

Grin = window.Grin || (window.Grin = []);Grin.push(['conversion', amount, {order_number: order_number, currency: currency}]);

</script>`