hey
i need a help in my game
i am making a game for android smart phone. i am not making for facebook. but i need a feature in my game that when player clear the level then he/she can update his/her score on facebook as a status.
what should i do please help me
thank you in advance 
Go read up on Facebook’s API.
You can upload older scores by storing saved files on Server, then using Facebook’s API syncronize saved files with social_id, so after deleting scores and logging in to fb you can check if savedFile exist on server for exact user with this social_id.
Link to
Facebook-Unity-SDK