Facebook promotional and developer guidelines
There are two official documents regarding promotions on Facebook:
Some of the most important points apps usually ignore:
- You can’t use Facebook features other than liking a page (fangate), checkins to a place, or connection to the app as a precondition to entering a promotion.
- Promotions must be open to all old users and new fans of the page.
Facebook now has an App submission process where they check app functionality. Here are the guidelines: