If you have a Facebook Business Manager, and even after integrating your Facebook with AgentLocator your leads are still not syncing, there might be an additional step you need to take.
1. Please open your Business Manager Settings.
2. Locate the tab called "Integrations", click on it and open "Leads Access"
3. Select the appropriate page (the one you're running the ads from) and click on CRMs.
4. Click on "Assign CRMs", find AgentLocator in the drop-down menu, click the circle next to it and click "Assign".
5. Once you're done, make sure AgentLocatoris now visible under Connected CRMs.