Go to your menu "Settings" :
And "Sharing options" tab:
In the corner of the page, you’ll see the social accounts you can connect to. Click on the Facebook Pages option.
From there, you’ll be prompted to select which page you’d like to post your Scoops to.
Once you’re connected, your Sharing page will look something like this:
REMINDER: Make sure that you’re logged in as an administrator on your Facebook page. For example, if your personal Facebook email is DogLover22@gmail.com but you manage a Facebook page logged in with the email CatLover21@gmail.com, make sure you’re logged in as CatLover21@gmail.com