Blackboard Sync syncs with the Blackboard system automatically when the user launches an end-user app (Blackboard Learn for the Facebook Platform, Blackboard Learn for iPhone or Blackboard Learn Toolbar), unless the last sync was within an hour. While the app is open and running, syncing will occur automatically an hour after the last sync.
The sync schedule is designed such that information displayed in Blackboard Sync is never more than an hour old. The last sync time is always displayed in the app.