A Google Click ID (GCLID) is required to identify Google Ads attribution for both Google Ads and third-party app analytics tools. Ensure that your account has auto-tagging enabled so that Google Ads attaches the GCLID to your URL.
Set up auto-tagging
- Sign in to your Google Ads account.
- In the page menu on the left, click Settings.
- Click Account settings.
- Click the Auto-tagging section.
- To enable auto-tagging, click to check the box next to “Tag the URL that people click through from my ad.”
- Click Save.
Note: Auto-tagging is not compatible with 3PAS ads.