Terminology
We refer to the following field with the term Shopify discount code field:
We refer to the following field with the term Discount Ninja promotion code field:
Discount code field v Promotion code field: what is different?
Shopify discount code field
Only accepts Shopify discount codes, does not accept Discount Ninja promotion codes
Each code can apply only a single discount
Can be configured to stack Shopify discount codes on top of Discount Ninja promotions
Available on the checkout form (step after cart)
Managed by Shopify
Discount Ninja promotion code field
Accepts existing Shopify discount codes.
Accepts Discount Ninja promotion codes (set up in the Trigger tab of your promotion, see more here).
Can be configured to accept multiple codes
Each code can apply one or more offers
Available on the cart form (step before checkout)
Managed by Discount Ninja
Needs to be added to your theme and enabled in the settings. Read more here.