We’ve removed the requirement that promotions on Facebook only be administered through apps

Facebook has updated its Pages Terms to make it easier for businesses of all sizes to create and administer promotions on the platform.
Promotions may now be administered on Page Timelines and in apps on Facebook, but not on personal Timelines.
The update also emphasizes the need for accurate tagging in promotions: Pages cannot tag or encourage users to tag themselves in content they are not actually depicted in.
For example, asking users to submit names for a new product in exchange for a prize is allowed, but asking them to tag themselves in pictures of a new product for a prize is not.
These changes aim to help businesses run promotions while maintaining content accuracy and integrity.