I'm currently running a Facebook ad campaign optimized for Clicks to Website. I am using a single UTM tracking link to track sessions from the ads into Google Analytics.
I'm concerned because there seems to be a large disparity in how many link clicks Facebook is reporting to my website and what Google Analytics is telling me. The disparity is around -65% from Facebook "clicks to website" vs Google sessions. Speaking with Facebook ad support, they seem to think their reporting is correct, so I'm wondering if there is anything I am missing from the Google Analytics side of things.
Any help would be appreciated, thanks.