
When More Targeting Makes Your Campaign Worse
Targeting is supposed to make campaigns more efficient.
You narrow the GEO. Then the device. Then the OS. Then the browser. Then the carrier. Then the time of day. Then specific placements.
At first, it feels like optimization.
But there is a point where targeting stops improving performance and starts destroying the campaign’s ability to learn.
This is where over-segmentation becomes a problem.
















































