To enable the highest accuracy tracking of Google Ads follow this guide on how to place the ThoughtMetric tracking parameters on your Google Ads.
ThoughtMetric Google Ads tracking parameter:
{lpurl}?tmsrc=googlead&tmcid={campaignid}&tmsid={adgroupid}&tmid={creative}&tmkw={keyword}
1.) Copy the ThoughtMetric Tracking Parameter
2.) Navigate to the Account Settings Page of your Google Ads account and paste the tracking parameter into the "Tracking template" text box.
How to handle parameters that are already in the tracking template
If you already have some tracking parameters in the tracking template field, don't worry, you can use the ThoughtMetric tracking parameters in addition to any tracking you already have in place.
To use the ThoughtMetric parameters alongside your existing tracking template you will want to append our tracking parameters to the end of your existing UTM string by using a "&" symbol starting with the tmsrc parameter.
For example If you already had the following text in your tracking template:
{lpurl}?utm_source=google
You would want to append the ThoughtMetric tracking parameters so that the end result looks like this:
{lpurl}?utm_source=google&tmsrc=googlead&tmcid={campaignid}&tmsid={adgroupid}&tmid={creative}&tmkw={keyword}