Include a hard stop where parents are not able to sign child in if they are not scheduled for that day.

If Jane Doe is not signed up to attend on 7/22, and her parents try to sign her in on the app, a message should pop up that they are unable to do so because their child is not signed up for school that day. If a child is only enrolled for Mondays, Wednesdays, and Fridays, they should not be able to sign their child in on a Tuesday, unless it has been added to their schedule.