Another note.. if you absolutely have to recover who sent the original request, you can do so manually by going to the following URL for each request:
https://graph.facebook.com/REQID_TOUSER?access_token=123|xyz&method=GET
Where:
* REQID_TOUSER = the Request ID and the user ID of any user the request was sent to (make sure you put a ? at the end of this)
* access_token = your App ID separated by a pipe | followed by your secret key
The page you go to will have data on it, and one section will look like:
"from": {
"name": "Alex Sourcecoast",
"id": "1251253607"
},Id is the Facebook user's ID who sent the request. That ID will be valid for all users that specific request ID was sent too (if sent to multiple people).
Sorry to make you piece this together... but I know one person I referred to this post is using the Requests feature for rewards, and may need this info.
Good luck,
Alex
FB Requests 4.2.1 Admin Backend Error
