When you manage multiple Facebook accounts you want to have control over how your staff access Pages and Ads and now you have a way by using Facebook Business Manager.
Facebook Business Manager allows you to control multiple Pages and Ad Accounts and what information each person can access which makes it much more secure. Up until now if you had multiple people managing different Pages and Facebook Ads, you had to give them access to shared accounts. The problem with this is that you could not limit access to specific information and worst yet if you shared a single login. Having a single login creates problems in the fact that if one person makes a mistake then the account can become an issue and logging in from different areas could trigger Facebook to think the account has been hacked.
The downside of using Facebook Business Manager is that each user must log in using their own personal Facebook account. We all like to keep our personal accounts private.
We will keep you up to date with the improvements but if you manage multiple Facebook Pages and Ad accounts and have other people working on them, consider using Facebook Business Manager.