Suggestions:
The minimum balance for a bank account is the minimum currency amount that must be maintained to receive certain benefits or to keep the account open.
In bank master, ‘minimum balance’ which can be used to put a validation for the system that it does not accept the transactions of the bank when the bank balance goes below minimum balance of the bank. There is a separate flag whether to check minimum balance, which has to be defined as Yes . If any transactions are done for the bank which will bring the account balance below minimum balance amount, then the system will show the msg as ‘Insufficient Balance, Balance in bank account is less then the minimum balance to be maintained for this account’.
Please refer the snapshot below as bank master 3.png