As of today, FullContact's Person API will no longer support the ability to query by Facebook ID or Username. Since you are currently using this functionality, we wanted to notify you as soon as possible.

We apologize for the short notice on this change and understand the inconvenience it may cause you. We will, of course, continue to support lookup by email address. And, as always, we will continue to work to provide you expanded returned fields and improved accuracy within all of our APIs.

Here's an overview of what to expect:

Beginning on Friday, February 12:

API calls to Person API using the query parameter of `facebookId` or `facebookUsername` will start returning a `404` response code. Thirty days from now (beginning March 13th), those queries will return a `422` response.