What’s the matter with the dynamic password for single recruitment not being sent to the mobile phone?

Incorrect mobile phone number, etc.

1. If the mobile phone number is incorrect, the dynamic password cannot be sent to the mobile phone.

2. Sometimes there is a network delay, causing the dynamic password to fail to reach the mobile phone in time.

3. Some mobile phones have a text message interception function, which may automatically filter out dynamic passwords as spam text messages.

4. If there is a problem with the SMS server, the dynamic password cannot be sent to the mobile phone.