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Stream to Facebook using AccessToken and destinationID -REST API

I am facing some problems in creating the Facebook stream target through Rest API, I followed the document given as ' ', the target has been created successfully, but it is not logged in to the facebook account as with the given Access token and destinationID and the target is also in ERROR state in the UI.
I have a confusion like whether the access token and the destinationID may be incorrect or invalid? what I should do to overcome this?

Kindly clarify about how and where to get the access token and the destinationID to achieve this successfully.