We will not fetch the lead count from Facebook data directly. So that's why it is not showing Cost per lead (CPL) and no leads in the leads column. Since those leads data (opportunities lead value) lies within Highlevel, we build the attribution report to help you to determine the revenue you are earning in each campaign. The revenue would be the lead values you set for the opportunities.

We will need to set up attribution reporting properly in order for leads data to show up. How To Setup Facebook UTM Parameters For Attribution Reporting

Ad data comes from -> FB Ads
Lead / Sales data comes from -> Attribution reports

To see all columns both need to be setup properly.

How to enable the Attribution report on your HL account?

1. Go to agency settings -> Agency Team management 

2. Edit the user and enable Attribution report