Go through the following steps to create General Discount offer.  

Step 1: Install App

Install Discount Box app -> Open Admin panel -> Click on "Apps" tab -> you will see Discount Box app listed as shown in Image.

Click on this listed Discount Box app.

Step 2: Go inside Discount Box app

# When you go inside the app, you will see 3 tabs on top which are Dashboard, Setting & Create Offer.

# Click on Create offer button from top 3 options, you will see options like below image.

# Now click on Create Offer button of General Discount.

What is General Discount?

Give direct discount right on the selected products. Put any product or collection on sale with a fixed dollar off else with % off.

This offer type will allow you to create a discount in 2 varying ways.

1. Selected products on which you want to apply X% discount.
Example: "Denim shirt" is on sale with 20% Off

2. Selected products on which you want to deduct $X fixed amount.
Example: $12 Off on "Denim Shirt"


Step 3: Create Offer 

-> To create General Discount firstly, Choose products or collections that trigger this offer when products are added to your cart. 

-> Add percentage amount to give discount in percentage ELSE Add Fix dollar amount which you want to deduct.

Step 4: Advance Settings  

-> There is also an settings of Offer message texts. These messages will display when product added to cart & offer applied successfully. 

-> Do additional configuration to customize your offer. You can set a start date & end date of the offer. All these options are optional.  

-> Do not forget to click on SAVE button to save all the settings.

In your store, this offer will display like below image.