Facebook Business Manager is a free tool offered by Facebook that allows businesses to efficiently manage their Facebook presence and advertising efforts. It provides a centralized platform for managing multiple Facebook pages, ad accounts, and access to other Facebook tools like Instagram and Facebook Analytics.

Here are some reasons why every business should use Facebook Business Manager:

1. Centralized Management: Facebook Business Manager allows businesses to manage multiple Facebook pages and ad accounts in one place, making it easier to track and manage all of your Facebook activity.
2. Ad Account Management: Business Manager allows you to set up and manage multiple ad accounts, making it easy to create, edit, and track the performance of your Facebook ads.
3. Access to Facebook Analytics: Business Manager gives you access to Facebook Analytics, which provides detailed insights into your business's performance on the platform.
4. Advanced Advertising Features: Facebook Business Manager offers advanced advertising features like Custom Audiences and Lookalike Audiences, which allow you to target specific demographics and increase the effectiveness of your advertising efforts.
5. Collaboration: Business Manager allows you to grant access to your Facebook pages and ad accounts to other team members, making it easy to collaborate on social media efforts.

By using Facebook Business Manager, businesses can efficiently manage their Facebook presence and advertising efforts, access valuable analytics, and take advantage of advanced advertising features.