To create new application on facebook.com (Required for each vBulletin installation)
- Goto: https://developers.facebook.com/apps, and log in.
- Click Create New App (top-right).
- Enter an appropriate App Name, and click Continue.
- Do the Facebook Security Check, and click Submit.
- On the page that opens, click Web Site from the list on the bottom.
- In the Site URL input, enter the URL of the root for your vBulletin installation. This must be exactly the same as your Forum URL setting in AdminCP > Settings > Options > Site Name / URL / Contact Details > Forum URL.
- Click Save Changes.
- Make a note of the Application ID and Application Secret; you will need these to do the following procedure.
- Goto your vBulletin site, and log in to the Admin CP.
- Goto Settings > Options > Facebook Options, and click Edit Settings. For more information about the Facebook Options in vBulletin, see Facebook Options.
- Check Yes for Enable Facebook Connect.
- Enter the Application ID and Facebook Secret from the Facebook Developer page.
- Make whatever other option changes you want to.
- Click Save.