You can easily set up Salesfire via your Google Tag Manager account.
<script async src="https://cdn.salesfire.co.uk/code/[YOUR SITE ID].js"></script>
Pro tip: Your unique Site ID can be found in the Salesfire dashboard under More and Settings.
3. Scroll down to click on the white space under Triggering then select All Pages and save the tag.
4. Submit the tag for review and Publish the tag to make it active on your website.
If you are not using Google Analytics, learn more about manually adding order tracking on a bespoke platform.