The overdue system of Meituan suddenly stopped sending text messages.

The reason why Meituan's overdue system suddenly didn't send short messages was the internal adjustment of the company, the setting of short messages on mobile phones and the change of mobile phone numbers.

1. Due to the internal adjustment of Meituan Company, such as changing the SMS sending platform or stopping the SMS sending service.

2. Due to the user's SMS settings, for example, the SMS of the US Mission's living expenses is blocked or blacklisted.

3. Because the user changed the mobile phone number or stopped using the original mobile phone number during the overdue period, the living expenses of Meituan could not be notified to the original mobile phone number by SMS.