Can I send a text message when the other party's mobile phone is turned off?

Yes, sending messages has nothing to do with the other party's mobile phone, but has the greatest relationship with yourself. The following situations may affect the sending of short messages.

First, the phone is in arrears. If the mobile phone is in arrears, you can't send text messages.

Second, mobile phone or system failure. Your mobile phone is broken, or there is something wrong with the system, which may also affect the sending of short messages.

Third, the number of the short message center has been changed, so you can't send short messages. You need to call the operator politely and ask them to modify or reset the SMS center.