I'm retrieving my page's messages through Graph API calls, but it seems to be impossible to know who sent a message on behalf of my Page. Normally in the Inbox you can know who help manage a page sent a message, and now I'm looking for a way to retrieve that information.
And one more question, at the end of the JSON file that Facebook returns there is an URL to retrieve more data. I wonder if there is any way to automatically take that URL and download the next JSON file.
Thank you!
The Message object does not provide this information according to the reference.
Depending on the Framework you are using to work with the Graph API there may be a way to load the next page automatically.