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Balance limit

Question asked by fidalguito on Sep 1, 2018
Latest reply on Sep 1, 2018 by philmodjunk


I wanted help in trying to implement the following limitation in our system.


"Each student can only have € 20 in their account"


So if the student has 0 € in his account he can charge with 20 € if he has 10 € he can charge the rest if he has 20 € he can not carry the load until he has to spend the balance.