Select discount method for checkout

Discount can be applied to entire order by coupon code or you can setup discount for each line item. Setup discount method from settings.

Steps:

1. From your Shopify admin, go to App.
2. From the App page, click Wholesale All In One.
3. From Wholesale All In One, go to Settings.
4. In the Discount method section, click line items or coupon code radio button, it saves the value
   automatically.
   
5. Now discount will be applied at checkout according to settings here you choose.