Facebook Graph API doesn't display birthday

Question

I am developing an Android app where I need access to all the birthdays of my facebooks friends. But somehow I only get the birthdays of very few people.

Could it be that the new Facebook Timeline causes this bug? Because if I go to Graph API Explorer I don't see them either although almost every friend of mine has set his birthday visible. I also noticed that I was able to see the birthdays of my friends who still have the old facebook without the timeline.

Does anyone have an idea what could cause this problem?

Thanks in advance!

Answer 1

For birthday following are the two permissions

friends_birthday,user_birthday

The behavior is same for old wall and Timeline users. Double check you are taking the above permissions using following tool.

Accesstoken Debugger

and if permissions are there check friends birthday using following tool

Graph Api tool

PS: User can apply privacy on its year but not on its complete birthday.
For some people birthday will not show up using graph api because they have opted out of Facebook applications using Facebook setting..