What Is Required On My Campaign To Meet Facebook & Twitter Promotions Policy?
Wishpnd campaign apps are built-in with the necessary disclaimers and participation methods to keep your campaign within Facebook's Promotions Guidelines!
See our artile Facebook Promotions Guidelines Explained for more details.
One of two things you cannot do in a Twitter campaign is encourage people to tweet the same thing repeatedly by, for example, stating that "whoever retweets this the most wins". The other thing you cannot do is create a contest that encourages users to create mutliple accouns in order to enter multiple times. You can discourage this by including a line in your contest rules that reads "anyone found to use multiple accounts to enter will be ineligible".
See our article Guidelines for Contests on Twitter for full details.