What is Facebook Business Manager?
Business Manager lets businesses more securely share and control access to their advert accounts, Pages and other assets on Facebook.
Anyone in a business can see all of the Pages and advert accounts that they work on in one place, without sharing login information or being connected to their colleagues on Facebook.
When you sign in to Business Manager, it will show you a quick overview of the advert accounts and Pages that you work on
If you’re the admin for your business, go to Business Settings to add new people, Pages, advert accounts and other assets to your business
Anyone hit by roll out of the ‘Facebook Business Pages’ updates, head over to this temp help page put together: