Here's what I'm currently doing but I see many service-based leaders running a different campaign structure, I'll go over both below:
OUR STRUCTURE:
CBO -> Broad Adset (Per concept*) -> 5 Ads
*Each concept contains 5 ads / and we create around 6/8 concepts per month for a client
That's it, so it would be a single CBO with around 10 adsets with 5 ads each - then we put the winners inside another adset and the campaign works as both scaling and testing, this is what we use but I feel like this is more of an eCommerce approach.
Everything optimized for qualified calls
NOW HERE'S WHAT I SEE FROM OTHERS:
CBO -> 3 Adsets (Broad/Interests/LLAs) -> As many ads as you have
Why do I feel like I need to change this approach? Well in B2B SaaS calls are more expensive and obviously you need to spend more money and at the same time, in different mentorships they push this structure as well.