Combining discounts

By default, a discount does not combine with any other discount. Only one applies to an order. You allow combining (stacking) for each discount, in its Combinations (stacking) settings.

Who can do this: the Administrator and staff with the Admin role change these settings. Store Admin and Reports Viewer can view them. Discounts are a plan feature (see the badge above).

Concept: both discounts must agree#

Each discount says which kinds of other discounts it may sit beside: product discounts, order discounts, or both. The app says it plainly: "Which other discounts this one may be applied together with. Both discounts have to allow it, so the other one's settings matter too."

For example, a 10% product discount on tea that allows order discounts, and an order code that allows product discounts, can both apply. If either one does not allow the other kind, only one applies.

Allow a discount to combine#

1. Open the discount with Edit discount.
2. Under Stacking and limits, find Combinations (stacking).
3. Tick Can combine with other Product/Line-item promotions, Can combine with other Order/Cart-level discounts, or both.
4. Click Save.
5. Open the other discount and do the same, so that both allow each other.

The order they apply in#

When discounts combine, the server applies them from narrow to broad:

1. Product discounts first, then order discounts.
2. Within each kind, percentages before fixed amounts.
3. After that, the custom discount typed at checkout, on top of what is left.

This order keeps the maths fair. An order discount is worked out on what the goods cost after the product discounts.

The cart is 100.00. A 20% product discount takes 20.00. A 10% order discount that combines with it takes 10% of 80.00, which is 8.00. The customer pays 72.00, not 70.00.

Behind the scenes#

• An automatic discount that cannot combine with those already applied is left out, without a message.
• A code or picked discount that cannot combine is shown as not applied, with the reason "cannot be combined with the other discounts on this order". On a new order, the order is refused until you remove it.
• The custom discount at checkout is not part of these rules. It always applies last.

Watch out#

Troubleshooting#

Related pages#

Discount types · How discounts work · How pricing works