For promotions that used a different sales We should organise promotion activities such as promotion, price promotions, loyalty promotion buy 1 get 1 free.
For promotions that bring Tech sales. We should organize special promotions during the festival, such as promotional discounts. Promotion rate Promotion buy 1 get 1 free.
For the promotion of popular used as a technique for sale. We should arrange special promotions during festivals such as sales promotion, promotion, promotion purchase points 1 and 1.