Promotion discounts for specific products can be used if you want to give special discounts to certain products only so that the item can be sold quickly or there is a price reduction of the product.
I. Adding Promotion Discount For Specific Products
Step 1. Go to Promotion Menu then click promotion event tab and click add button

Step 2. Fill promotion event form and then click submit
Fill the outlet that you want to be able to use the promotion on it, and then choose the type of promotion by Product - Discount per product. Fill the promotion period for the discount to be applied and then click on the Add a variant button to add the variants of the product that you want to be applied for the discount. Click Submit to turn on the promotion.

Step 3. Promotion discount for specific product successfully added

II. Using Promotion Discount For Specific Products
Step 1. Go to sell menu then input the product that can be applied with the promotions. The discount will be set automatically

How to Promotion Specific Product / Holiday Promotion
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If you want to make a promotion discount on all product, you can check this article Promotion Discount All Product