Notifications
From A3! Wiki
If push notifications are enabled on your phone, the game will notify you when your AP/LP is full. During events/gachas, there may also be special messages from other characters reminding you to play. Usually, these are one-line quotes taken from the event stories or card backstages. As of August 2018, all main and ensemble characters have LP/SP refill lines.
LP Refill
Sakuya | Your LP is full! Director! Let's practice! |
SP Refill
Tenma | Your SP is full; you're obviously going to perform a play, aren't you? |