What are the limitations of SMS group sending platform?

First of all, why there are restrictions. In recent years, with the continuous exposure of CCTV to spam messages, the Ministry of Industry and Information Technology and the three major operators have been taking new measures to control them, but not all of them are useless spam messages, and some of them are indeed rigid requirements, such as notification, verification code, membership preferential information and so on. In order to avoid the complaints of spam messages as much as possible, operators have introduced a system restriction policy. General restrictions are divided into three items: winding number restrictions, sending content restrictions and sending time restrictions. The number of articles generally refers to how many articles need to be sent. The content restriction is mainly that the SMS platform will review the content, and some content is not allowed to be sent. Delivery time: General advertisements can only be delivered during the day, and are not allowed to be delivered at night. Of course, some platforms claim to be unlimited, so it's best not to be fooled. If there are no restrictions, the service life of the docking channel of this platform will not be very long, which means it is likely to stop for a period of time. Of course, it may also be a liar. So here's a warm reminder, if you want to send regular short messages, try to find a reliable platform, such as Haoyu Information Chain, Dada, 238 and so on. , so as not to be deceived.