What is CBO? Campaign budget optimization explained

CBO (campaign budget optimization, now called Advantage campaign budget on Meta) sets one budget at the campaign level and lets the platform distribute it across ad sets.

Example

A $300/day CBO campaign with three ad sets might spend $180 on the best performer and $60 on each of the others.

Why does CBO matter for e-commerce?

CBO is efficient for scaling proven ad sets. For controlled creative tests, ABO keeps spend even across variants.

How does Posta use CBO?

Posta's agents use CBO when reviewing your accounts and recommending changes. See the AI Meta ads management page for how it fits into your workflow.