If you have products that already include a discount (via a compare-at price), you can create a dedicated collection for them. Once created, this collection can then be added to the Exclusions section of your campaign, ensuring those products aren’t double-discounted.
Step 1: Create a Smart Collection
The easiest way to group discounted products is by using Shopify’s Smart Collection feature. This lets you automatically include products that match certain rules.
Go to Products > Collections in your Shopify admin.
Click Create collection.
Under Collection type, select Smart.
Add the following condition:
Compare-at price → is greater than → £1
This condition ensures that any product with a compare-at price set (i.e., marked down from its original price) will be added to this collection.
Step 2: Use the Collection in Your Campaign
When setting up your campaign in Discount Mixer, go to the Exclusions section and select this collection. This way, your campaign will skip over already-discounted products.