Timeliness of iphone message sending failure

The message was not sent successfully.

1, because our mobile phone is in arrears, we can't send text messages. This is the most common situation and needs to be paid in time.

2. The information center number of the mobile phone is set incorrectly, which can generally be solved according to the actual information center number of your province.

It may be that your SMS center number was changed by yourself. You can change the SMS settings or call customer service.