Budget Management in Meta Ads (Facebook & Instagram)

Do you give Meta's algorithms the freedom to handle your budget, or do you control it yourself? This is the question that decides the fate of your money.

ABO (Ad Set Budget Optimization)

Here, you set a specific budget for each "Ad Set" (Audience) separately. When to use it? During the Testing phase. When you want to test 3 different audiences or 3 creatives, you force Facebook to spend the exact same amount on each set to accurately determine the winner without algorithm bias.

CBO (Campaign Budget Optimization)

Here, you set the budget for the entire campaign, and Meta's algorithms distribute it to the best-performing Ad Sets. When to use it? During the Scaling phase. After identifying winning audiences from the testing phase, you put them all into a CBO campaign, increase the budget, and let AI bring you the cheapest possible sales.

Using CBO from day one without historical data may lead to wasting your budget on a single audience that might not actually be the best for you.