When you change the UTM tracking suffix on your ads, Google and Meta do not apply it to live ads instantly. It typically takes a few hours for the new suffix to start appearing, and it only applies to clicks that happen after it goes live.
Checking that tagging is live. To confirm the tagging is working:
- Click one of your live ads.
- Before booking, look at the browser address bar.
- If you see utm_source= in the URL, the tagging is live and that booking will attribute. If it is not there, the click will not attribute yet.