How did Didi Express send me a message to advertise?

You need two methods. One is to collect your number. Generally, you will buy some numbers from the data platform, such as car owners, white-collar workers and so on. Second, we need short message platforms, such as Haoyu Information Communication, 238, Dahan and so on. With these two conditions, the content import number can be issued. If there is yours in the number, you will receive it.