Once I entered a Taobao shop, the owner took the initiative to say hello. How did he know that I entered his shop?

Hehe, now the sellers have been upgraded, and now the competition of Taobao shop owners is fierce. Taobao buyers enter your store to say hello to a software that can detect the buyer's Wangwang number and actively communicate with customers. Most customers who enter your store just look at the baby and leave. With this baby, they can understand your problem and communicate with buyers in time. They are all your potential customers. Ten customers entered your store and left nine. He is your magic weapon to take the initiative and win by surprise. With it, you don't have to worry about not finding customers. It is more cost-effective than driving a through train or other paid promotion.