(3) neglect of consumer psychology, promotion is not in placeAlthough discount and price reduction is an effective method of promotion in supermarkets, the different psychology of target consumers still needs to be considered in the promotion. Only by catering to certain psychology of consumers can the expected effect be achieved. So taking the promotion advice you do market research, understanding the psychology, the main goal of the consumers with clear most of the target consumers to the product which is the most to see the factor of a few, so in the sales promotion can according to consumer need to be targeted promotion rather than take the discount prices.