Joke Collection Website - Public benefit messages - What SMS should I send to set the retention period of SMS?

What SMS should I send to set the retention period of SMS?

To set the preservation period, please edit the short message "Send SZBG# service start time (such as 12: 30 input 1230)# service pause time (such as 1830 input 10659 190)" and send it to. For more service benefits, click on "official website" customer service 324 below to answer your questions.