How does WeChat bind a rookie?

Search applet. Cainiao Wrapping is an application software that provides express delivery. It is mainly suitable for online parcel inquiry, and supports automatic tracking of online shopping parcels such as Taobao, Tmall, JD.COM and Suning. To bind a rookie, WeChat needs to add a rookie wrapping applet to WeChat, and it can be automatically associated and bound through WeChat authorized login.