Board Thread:General Discussion/@comment-1824272-20150420201840

Maintenance has just been announced for the PSN messaging system. The maintenance will take place from 4 AM to 7 AM on April 22 (GMT). Yes, right when the new Ranking Tournament begins. During this three-hour period, all of the following features will be unavailable: This system will most likely affect game invites as well, which means that you won't be able to send or receive invites for Ace Combat: Assault Horizon or Ace Combat Infinity. 
 * Sending PSN messages
 * Receiving PSN messages
 * Deleting PSN messages
 * Changing a group message title
 * Adding members to a group message