Step 2. Click on the tab “external data”
Step 3. Add a new data source by clicking on the “plus” button
Step 4. Fill in a name for your data source and click next
Step 5. Fill in your account name. There are two options
Option 1: your Facebook url has an account name and numbers
In this case you only fill in the numbers.
Option 2: your Facebook url has only an account name
In this case you will fill in the account name.
Step 6. Click on the save button. Now your Facebook is added as an external data source.