Meta's creative testing tool launched in 2025, but most advertisers either aren't using it or completely misunderstand how it works. The old approach of creating separate campaigns and ad sets for testing has serious flaws that this tool solves. Jon explains why the creative testing tool should be part of your process, how to use it in stages instead of testing 20 ads at once, and why it gives you data to make informed decisions instead of guessing based on gut feel.