Campaign level is where the advertising objective is decided. Setting up campaigns properly can help better organise, optimise and measure performance of ads.
Ad set level is where you determine your target audience, placements, budget and bidding type. This section will cover specifically – target audience and placement options.
This is where you define the maximum amount you are willing to spend in an ad set and your bidding objective.
At Ad level you decide on the design of the advert – creative, text, call-to-action and landing page.