There are 2 options for connecting your social media pages:
Onboarding
To go through our normal onboarding process, simply click the "Home" button on the left sidebar.
Account Settings
Click "Settings" on the bottom left of your screen
Select "Social Media"
Click "Connect Page" and select the corresponding platform
Tips for Connecting:
Regardless of how you connect, be sure to select:
The Meta Business Manager that owns the pages you're connecting
The FB page(s)
The IG page(s)
Note that in order to connect an IG page, an FB page must be connected to it.