If you go to the Facebook Ads Manager and start creating a new Facebook ad campaign, the first choice you’ll have to make is selecting the campaign objective.
Your Facebook campaign objective determines what optimization and bidding options you’ll have throughout the campaign setup process. This setting tells Facebook what it is that you wish to achieve, and the system will provide you the best tools to do it.
Choosing the right objective from the start is crucial, as it will later affect your ad delivery and bidding options. If you want to avoid the confusion and messy campaigns, you have to keep this in mind.