Why is there no permission to send text messages in the permission?

Check whether the SMS center number on the mobile phone is set correctly. If it is not correct, it will directly lead to receiving SMS without sending SMS, so change it to the correct SMS center number.

Open Settings, click Security Settings and Application Permission Settings, and give him the application permission you need to set.

There are restrictions. In order to prevent the intrusion of spam messages on mobile phone users, the Ministry of Industry and Information Technology requires the three major telecom operators in China to limit the number of SMS messages sent by users every day. The specific quantity limit is: no more than 200 messages per hour on non-holidays and no more than 1 000 messages per day; During the holidays, no more than 500 pieces per hour and no more than 2000 pieces per day. Supplementary note: More than 10% of the above-mentioned customers are included in the monitoring list, and more than 10% suspend the information function.