Shaanxi Social Insurance app failed to send verification code

Network problems, server problems, SMS service provider problems.

1. Network problem: When the Shaanxi Social Insurance app sends a verification code, it needs to interact with the server for data. If the network is unstable or delayed, the verification code will fail to be sent.

2. Server problem: The sending and receiving of verification codes involves server-side processing. If the server fails or the load is too high, the verification code will fail to be sent.

3. SMS service provider problems: If there is a problem with the SMS service provider used by the application, it will also cause the verification code to fail to be sent.