What will happen if the bank card SMS notifies that there is no money?

If the balance is deducted to zero, no more money will be deducted. Don't worry about deducting it into a negative number and owing money to the bank. However, if you do not use it for a long time, your account will be frozen. If you need to use it again, you need to activate it. If online banking has been opened, you can cancel it on the mobile app. It is suggested to open online banking as soon as possible, because online banking can basically meet 99% of the demand, and it will be too troublesome and time-consuming to queue up in the business hall in the future. Opening online banking is basically a once-and-for-all thing.