Buddy List System initialization involves loading any previously stored Buddy-specific data from the server, such as the Buddy List of the current User, its previous state and the persistent Buddy Variables. The initialization request is the first operation to be executed in order to to use the Buddy List System features. Once the initialization is completed, the SFSBuddyEvent.BUDDY_LIST_INIT event is fired and the User has access to all previously set data and can start interacting with its Buddies; if the initialization fails instead, a SFSBuddyEvent.BUDDY_ERROR event is fired.