I replied on the site, but I'll share my comment here as well.<p>I work on Facebook Platform. We never "turned off the Requests functionality for apps that are not labelled as games, breaking many live apps." We never turned off requests. We never broke a single app.<p>What we did do was test the impact of issuing a notification for a new app request for several categories of apps. The sending and delivering of requests still worked through this test and nothing broke. Users could still send requests and they could receive them on Facebook.<p>The key thing to bear in mind is that our APIs often express "intent", not specific UX actions on Facebook.com or our mobile apps. We are always testing new user experiences to see what the best experience is for a given intent from an app. Such was the case with this test.<p>Again, no apps were broken, we were simply testing if/when/how we should surface notifications for app requests to users.<p>We have concluded this particular set of tests and if we are going to make some permanent changes, we will make sure to inform our developer community.