Google Tag Manager

https://tagmanager.google.com/

Google Tag Manager is a site container used for storing and triggering scripts.
These then can be used for tracking.

Tag Manager Installation

Below are links to pages for different systems. These pages will include the methods used for installing the Tag Manager and the Conversion Value tracking.

Self-Host System	On-site Builder Systems	Chat Systems
CS-Cart	Bigcommerce	CollectChat
Joomla	Ecwid	HubSpot Chat
Magento 1.x	EKMPowershop	Jivo
Magento 2.x	MyshopBlocks	LiveChat
OpenCart	Shopify	Tawk
Prestashop	Squarespace	Tidio
Wordpress	Wix	ZenDesk
X-Cart	Yell	Zoho
Zen Cart

Generic jQuery Form Listener

If there is no instructions in the wiki for a particular system and/or plugin and the form uses Ajax to submit, It may be worth trying this generic form listener.

depending on what the jQuery is called when initialized you may need to change "jQuery" to "$" in the code below.

create a custom HTML tag and change the index URL to what the URL is submitting to in the Ajax form.

<script>
jQuery(document).ready(function() {
	jQuery( document ).ajaxSuccess(function( event, xhr, settings ) {
		if (~settings.url.indexOf("/contact/form/process/")) {
			var dataLayer = window.dataLayer || [];
			dataLayer.push({'event' : 'contact-form-submitted'});
		}
	});
});
</script>

note: the form must be using the actual jQuery's Ajax method to perform the request for this to work