Here’s the idea: find out if people are actually watching the YouTube videos you have embedded on your pages.
This one honestly took me and my team a while to get working for no particular reason. Sometimes Google Tag Manager is just plain finicky (which I may have said 100 times in the GTM videos).
The good news is, it looks like this is finally working for me. I don’t anticipate as much trouble for you.
What’s really exciting about this is that you can set up remarketing audiences based on video views, so you could show Google Display and YouTube ads to your most engaged website visitors.