When you’ve got a number of & totally different Advert Units in 1 Fb Marketing campaign with ‘Lowest Value Bidding’, does the Marketing campaign solely use the bottom worth Advert Set? Or does it at all times use **all** advert units with Lowest Value Bidding utilized to every one?

As a result of I keep in mind having an Advert set that was costing about 0.25 per click on, after which added a brand new advert set, and was being charged about 0.80 per click on, when clearly the marketing campaign might have been utilizing the 0.25 per click on advert set as an alternative…