Tuesday evening.
The under-twelves manager opens the squad on his phone and sends the availability request for Saturday's away fixture, which was imported from the league last week and rearranged to a 10.30 kick-off yesterday; the request carries the new time and the venue.
Parents answer yes or no with one tap, and by Thursday morning twelve have said yes, two no, and one has not replied and is reminded automatically.
One parent who says yes is told the registration for this season is incomplete because the photograph consent was never answered; she completes it in a minute, and the player becomes selectable.