Negative stock warning

In reality, physical balance of stock cannot go negative, but while passing entry in Tally, if your stock balance is going negative then surely you are making some accounting mistake. You can prevent this by configuring Tally to meet your requirement. Press F12 at inventory voucher screen and activate the option "Warn on negative stock balance?". Now everytime while passing inventory voucher if you enter any quantity which will make your stock negative, Tally will give a warning message displaying the figure by which your stock balance is going negative.