What does the short message Beijing password mean?

According to the information about the activity initiated by JD.COM, the password of Beijing is the password stream of JD.COM. Participating in the same activity can only receive traffic once, but it should be noted that there is a limit to the number of inputs per day. Short message password, also called short message dynamic password or short message password, is a 6-digit random number dynamic password sent in the form of short message, and it is also a mobile phone dynamic password form.

JD.COM is a self-operated e-commerce enterprise in China, and its founder Liu is the chairman and CEO of the group.