Do you understand what factors are being taken into account in how platforms determine which ads to show each user?
Both Google and Facebook use an auction system to determine where your ads are shown, and understanding how those auction processes work can play a big part in generating more exposure for your promotions. But both are different, despite seeming largely the same on the surface.
Illustrating this, the team from Ice Cube Marketing have put together this listing of the differences between the two systems to help you get a better understanding of how to improve your relative ad efforts.