What Is a UTM Parameter?
A UTM parameter is a tag appended to a URL — utm source , utm campaign , and similar — used by analytics tools like GA4 to attribute traffic to a specific source or campaign.
Why It Matters In TrafficCreator#
TrafficCreator lets you set utm_source and utm_campaign on a project so delivered visits carry those parameters and attribute correctly in your GA4 reports instead of showing as generic Direct traffic.
Example#
Setting utm_source=trafficcreator and utm_campaign=q4-test means delivered visits appear in GA4's Traffic Acquisition report under that source/campaign combination.