Is it illegal to send text messages in groups?

Hello, SMS group sends illegal information. For example, pornography, gambling and drugs violate national harmony, and information such as invoices, used cars, credit card withdrawals, retaliation, and arms are all illegal. Lu Jun, a spokesperson for the Ministry of Industry and Information Technology, once said that SMS advertisements are not within the scope of spam messages, not to mention that you send them to your own members. This kind of industry SMS is no problem, and it is as reasonable and legal as the red SMS during the two sessions this year. But I suggest you tell them when you collect customer information. If there are any preferential activities here, I will send you a text message. If you prefer to receive them, please do not send them to the customer. In this case, it can not only protect customers, but also do a good job of after-sales! ~