Does ABC open the SMS function for 24 hours before displaying the balance?

It takes effect in time after opening, not 24 hours.

Enabling the SMS function is not to display the balance, but to remind customers when the account balance changes.

For example; The customer's bank card has a deposit in 200 yuan, and the withdrawal amount is 100 yuan. This means that the banking system will automatically send a short message to inform the customer that the bank card has withdrawn 100 yuan and the balance 100 yuan. At this time, customers can judge whether they are withdrawing money or spending money.

Short message banking refers to the electronic banking business in which customers edit the short message service number in a specific format to the bank, and the bank handles related business for customers according to its instructions, and informs customers of the transaction results in the form of short messages.