The Facebook OAuth step is handy when using Buildable's Login with Facebook Recipe template. This template gives developers the ability to integrate Facebook SSO into their frontend user applications in a few minutes, instead of a few days.
You can find your Facebook App ID and App Secret in the basic settings page after you register your app. More information can be found on the Facebook App Dashboard page.
To add Facebook OAuth as a step in your Recipe, click the "+" button in the Recipe editor canvas and choose Facebook OAuth from the step selector drawer. Click the dropdown in the "Select your account" section and click the "Add new" option. In the popup that appears, add a name for the account to easily distinguish it in future steps, the Facebook App ID and App Secret. Click the Connect button to complete the connection.