Originally, the WeChat business also earned money by word of mouth. If his product doesn't work well, he won't use it anymore, and his business can't go on.
The second reason is that some WeChat businesses are complacent when they make a little money, and then they become lazy. He no longer posts advertisements on the screen every day, but only remembers to advertise occasionally. Therefore, if a person is not diligent in business, he will not take the initiative to find him. Business is getting worse and worse, and nothing can be sold.
The third reason is that his circle of friends is so big. Maybe at the beginning, his friends gave him face and rushed to buy products. As a result, everyone bought a lot, enough to meet the demand of not buying any more. So his goods can't be sold, and he wants to expand his circle of friends. As a result, no new friends trust him, and business can only get worse.