Please check below link its describe the step-by-step process.
http://developers.facebook.com/docs/tutorials/ios-sdk-games/requests/
Hope its usefull for you
Question
When i send invitation to friends, friends receive that invitation but nothing has opened. When user get invitation and click the url is made which is given below -
this is not working now this url is same as url :-
I think i forgot some formalities in app setting. Please help me to solve this problem . Thanks in advance.
Solution
Please check below link its describe the step-by-step process.
http://developers.facebook.com/docs/tutorials/ios-sdk-games/requests/
Hope its usefull for you