Conversion linker tags are used to help tags measure click data so that conversions are measured effectively. Deploy a conversion linker tag on any page where visitors may land after they click an ad or promotion.
When people click on your ads, the URL of the conversion page on your website typically includes information about the click. When a site visitor takes an action that you’ve tagged as a conversion (e.g. when a Google Ads conversion tag is fired), the click information is used to associate that conversion with the click that brought the visitors to your site.