Can we update the 24/7 Scheduler on the same day?

Unfortunately that is not possible technically. The server has to have a “cut-off” time by which it has to lock in the schedule, not allowing further changes, in order to render the playout of the stream. Most playout software locks in the schedule, preventing further programming changes, 48+ hours prior to broadcast (sometimes a week in advance). Even our playout-servers need at least 0-24 hours of prep time for playout and a definite cut-off time which is 23:50 US Eastern Time.