Second, you should have a set of training materials for salesmen that you think are more suitable. Train them how to greet guests, how to recommend products, what they can say, what they can't say and so on. In short, we should set a standard. And require employees to work in strict accordance with standards.
Third, we should evaluate the performance of all salespeople. Good performance needs material rewards, and poor performance needs material punishment. The purpose is to improve everyone's work enthusiasm.