My server is able to publish posts on my Facebook app wall. But I would like to publish comments on user writing on the wall... When trying to post a comment to a given post ID I always get the following:
{"error":{"type":"OAuthException","message":"(#200) The user hasn't authorized the application to perform this action"}}
However I gave all possible authorization as a test user to this app. Any suggestion ?
Addition.
I also tried to use the method described here The URL I'm using looks like this
curl_setopt($ch,CURLOPT_URL,'https://graph.facebook.com/'.$comment['id'].'/comments?'.$access_token)
Now I get the following message
{"error":{"type":"OAuthException","message":"(#100) Invalid fbid."}}