Business Manager is a single interface for enterprises and agencies to manage multiple ad campaigns and pages for their business.
With Facebook Business Manager it is possible to give people specific roles and permissions to use Manager while connecting all those accounts. It also organizes and streamlines your overall advertising effort, perfect for developing your campaigns.
Facebook Business Manager helps to keep everything organized and secure, especially when you have to manage more than one Facebook Page. It also allows you to quickly see all of your pages, ad accounts, the people who have assigned roles and much more information about who and how use those accounts.