No matter how good the communication software is, there is no way to ensure that the SMS verification code arrives 100%, because it is normal for the SMS verification code to fail to be sent because of the influence of the signal. However, enterprises need to pay attention to this issue. Although sending failure is normal, the failure rate should not be too high. If the consumer fails to receive the SMS verification code after sending multiple times, the consumer will give up registering the app. More, the loss of the enterprise will be very large.
