Once a week Packet posts one summary in a staff channel you pick. It says how many members joined and left, how many applies finished, how many tickets were opened and closed, and who earned the most XP, named the way your leaderboards name members. Anyone who asked not to be counted is left off. It ends with one feature your server has not turned on yet, picked from the list in this guide. The member and activity numbers are the ones on your Analytics page for the same seven days.
You choose the day, the time and the time zone, and Monday at 9:00 AM is the default. Turning it on does not post last week's. If the digest is due outside your active hours it waits for the next window. If Packet was down when it was due, the digest is posted once when Packet is back, as long as that is within three days. If the channel is deleted, the digest pauses and Packet tells you, and it starts again when you pick a new channel. Off until you turn it on.
(Configure → Staff digest.)