Out of interest, what do you do if the number you gave a card to isn't on the team sheet at all?
It is the team’s problem. The electronic match card is “locked/approved “ by the team responsible prior to kick off - so it is their duty to ensure the player numbers on the field, bench and online match.
If they get it wrong then the other team can complain to the league or we have make an additional report.
At grassroots the online match cards lock at kick off. Of course, we always remind the coach/uncle/captain to check it. Common sense here. Usually they have their long template list of players and just delete the no shows! But sometimes we look and see an empty sheet- or numbers missing - so we remind them.
We also have a code we can use to unlock the card prior to kick off if there is a late change.
This has been maybe 7-8 years now and works incredibly well.
I had one crazy edge case. Top u18 girls. Coach shouts to me as I’m about to kick off. We are talking 3 seconds to KO. By the time I’ve gone over, we are passed kick off time. He’s got a number wrong. We’re on cable TV. Common sense. I get both coaches, explain the situation, we need to kick off and we’ll get the league to correct the number later as we can’t now.
The top divisions also use the same system for live scores. So someone from the home team has an ipad, logs the goals and cards, they are live online, and we approve/edit them (and add card codes etc.) with a pin code after the match. Again, this has worked great for years.
The system is Torneopal (heavily customised), it also does our pay, marketplace to “buy/sell” matches etc. I have my whole 11 seasons of matches, pay etc… and all the player stats for every player/league etc.