In this article:

1. Introduction
2. Understand why two promotions cannot apply at the same time
3. How to allow promotions to stack
4. Promotions priority

1. Introduction

In this guide, we’ll show you how to stack multiple promotions in a single order. By stacking promotions, you can offer customers even more value, combining discounts, deals, and more. Let’s take a look at how it works!

There are 6 types of promotions you can offer to customers:

1. Item price discount
2. Order subtotal discount
3. Free gift
4. Add-on / Purchase-with-purchase (PWP)
5. Shipping discount
6. Credit reward

2. Understand why two promotions cannot apply at the same time

Whether multiple promotions can apply in the same order depends on the types and conditions of the promotions.

If your promotions are combinations of any of the types and conditions below:

Promotion types:

• Item price discount
• Order subtotal discount
• Free gift
• Add-on / Purchase-with-purchase (PWP)

AND

Promotion conditions:

• All items (storewide)
• Selected items
• Selected collections

Then, these kind of promotions mentioned above — let’s call them 'non-product-stackable promotions', cannot stack on the same product in an order, whether as condition or discounted products.

What does this mean?

It means each product in the order can only be used to calculate 1 non-product-stackable promotion.

For example let’s say you’re running the following 2 non-product-stackable promotions:

1. Selected collection get 10% off
2. Any purchase get free gift X

If customer add A from selected collection and X into cart, A will repeat in both promotion calculations:

1. A get 10% off

OR

2. Buy A get X free

Since A can only be used to calculate 1 promotion, customer can only get 1 of the promotion above — the one with higher priority (refer step 4 below for promotions priority).

But if customer add A from selected collection, B and X into cart, no product will repeat in both promotion calculations:

1. A get 10% off

AND

2. Buy B get X free

Since no product is used to calculate more than 1 promotion, customer can get both promotions above.

3. How to allow promotions to stack

By promotion condition

If your promotion condition is not based on selected items / collections, you can use order total quantity or order subtotal condition. Promotions that using these 2 conditions can share product with 'non-product-stackable promotions'.

By promotion type

Shipping discount and credit reward promotions can share the same products with non-product-stackable promotions, as long as conditions fulfilled.

📌 While the discount settings are made stackable, take note that the following conditions still apply:

• Each item is limited to 1 item price discount
• Each order is limited to 1 order subtotal discount
• Each order is limited to 1 shipping discount
• Each order is limited to 1 credit reward
• Each order is limited to 1 discount / voucher code

4. Promotions priority

When an order qualifies for more than one non-product-stackable promotion, how system determine their priority?

1. The promotion applied with a promo code always have the highest priority.
2. Followed by customer preferred promotion — items customer manually add to cart from the add-on / free gift section in cart page.
3. Then, follow the sequence of your promotions list — the higher the position, the higher the priority. Use drag-and-drop method to arrange promotions priority.

Updated on: 31/10/2025