There is a Facebook Business Manager that could be extremely helpful if you have multiple Facebook pages, more than one ad account, use different payment cards, and need access to other companies' pages and accounts.
Keep in mind that for agencies offering management of Facebook pages and advertising accounts, Facebook Business Manager is required. For companies that have multiple pages and advertising accounts served internally by different departments or outsourced by different agencies, Facebook Business Manager greatly facilitates access to all accounts.
If you trust a team of Facebook specialists, surely your social networking accounts, pages or groups will fulfill their purpose in the best possible way. Specialists are experienced and specific knowledge, so they will think and choose everything so that your business, products and services are advertised in the best possible way.