How to Find a Person From Their Facebook ID | Techwalla
If you're trying to use Facebook to find a person or business, you can do so using their Facebook ID or Facebook username if you have it. Match a Facebook ID number to a name by typing it into the Facebook URL. You can also use the Facebook developer API to do this if registered with Facebook.
13 Nov 2018 ... Every person, business page and group on Facebook has a unique numeric ID. People can also have Facebook usernames that uniquely ...