Discount Master builds discounts as rules: you define what the discount does, when it applies, and how it looks to customers. A rule fires automatically whenever a cart matches, with no coupon code needed. This guide walks you through the four-step wizard by building a simple example: 20% off a product category.
Every discount is configured across four tabs: General (name and schedule), Actions (what the discount does), Conditions (when it applies), and Display (how savings are shown).
Step 1: General
- Open the wizard Go to Discount Master › Discounts › Add New.
-
Name the rule
Give it an internal Title such as
Winter Collection 20% Off. This is admin-only and never shown to customers. - Set a schedule (optional) Add a Start Date and End Date to have the discount activate and expire on its own. Leave them blank to run indefinitely.
- Activate it Turn the Activate toggle on. Inactive rules are saved but never applied.
Step 2: Actions
The action is what the discount does. You can add more than one row; each is applied independently.
- Add an action On the Actions tab, click Add Action.
-
Choose the type and amount
Select Product — Percentage off price and enter
20in the amount field. - Target products (optional) Leave the Products field blank to affect all products (we will narrow it to a category with a condition next), or search and pick specific products here.
The free plugin covers product and cart percentage/fixed discounts and BOGO. Pro adds shipping discounts, apply-coupon, free gifts, and tiered pricing. See Discount Actions for the full list.
Step 3: Conditions
Conditions are when the discount applies. Every condition must be satisfied for the rule to fire.
- Add a condition On the Conditions tab, click Add Condition.
-
Choose Product Categories
Select Product Categories, leave the toggle on Include, and search for
Winter Collection. - Leave the rest open With one condition, the 20% now applies to any cart containing a Winter Collection product. Add more conditions (cart subtotal, tags, and so on) to narrow it further.
Each condition has an Include / Exclude toggle, and multiple conditions can be combined with AND/OR logic. See Discount Conditions.
Step 4: Display
The Display tab controls the cosmetic indicators customers see. These never change the calculation itself.
- Tick where the discounted price should show: single product pages, product archives, cart, and checkout.
- Leave Show discount action as cart item meta on to add a “Discount: …” line under the product in the cart and order.
Save and test
- Save the discount Click Save. The rule appears in Discount Master › Discounts.
- Test it on the storefront Add a Winter Collection product to the cart and confirm the 20% is applied automatically, with the crossed-out original price and the savings shown.
If more than one rule applies to a cart, they are evaluated top to bottom in the Discounts list. Drag rows to set priority, and use the stop-processing flag to prevent rules stacking. See Managing Discounts & Priority.

