Shopify supports dollar discounts ($10 off), percentage discounts (10% off) and free shipping discounts. You can apply other rules such as dates, products, or collections.
Discounts are calculated and applied to orders in Shopify. They are calculated on products or collections, applying the criteria you set. The discount is applied to the sale subtotal regardless of how it was initially calculated. The sales tax, if applicable, is applied to the resulting subtotal. The Order is then synced to AccountEdge Pro.