If you want to use your own Facebook app for campaigns published on your website:
1. Go to the Settings section
2. And then click on the Facebook Applications section.
You can give a name to your app and enter all settings of your Facebook application :
Go to Settings and the Websites Management to choose a custom Facebook app to be associated to a particular website. This app will be used for Facebook Connect and Facebook Share and Invites.
If your want to use your own Facebook app for campaigns published on your Facebook pages, please contact our helpdesk (email@example.com), so we can set up your application or use your existing one.