Yes, it’s possible to run YouTube ads to promote a Facebook Group.
However, keep these points in mind:
Direct linking works (Google doesn’t block Facebook URLs), but it’s not ideal for tracking performance or conversions.
You won’t be able to track joins or retarget users easily because Facebook Groups don’t allow pixel tracking.
The jump from YouTube to Facebook can cause high drop-off rates since users are switching platforms.
Better strategy
Use a simple landing page or opt-in page that explains why to join and collects emails. Then direct people to the group from there.
Technically, you can link straight to your Facebook Group, but using a landing page first will give you better tracking, retargeting, and smoother user flow.