Apply discount at checkout in Woocommerce based on list/segment

Hi ​@digiphore, great question. This is a very common requirement, and it helps to clarify what is and is not possible out of the box.

WooCommerce cannot natively reference Klaviyo lists or segments at checkout. Because of that, there is no direct plugin that will automatically apply a discount purely based on Klaviyo list or segment membership.

How this is typically handled in production setups:

Recommended approach. Discount codes delivered via Klaviyo
The industry standard approach is to issue a coupon code after signup rather than auto applying one at checkout. The flow usually looks like this:

• Customer signs up via a Klaviyo embedded or popup form

• They are added to a list or segment

• Klaviyo sends an email or onsite message with a WooCommerce coupon code, either static or unique

• Customer applies the code at checkout

This method is reliable, easy to track, and avoids abuse. It is also fully supported by both Klaviyo and WooCommerce with no custom development required.

Auto apply discounts. Possible but requires custom development
If you want the discount to auto apply without a code, this requires custom logic rather than a simple plugin. The typical implementation involves:

• Setting a cookie or URL parameter when the Klaviyo form is submitted

• Using WooCommerce hooks to detect that flag at checkout

• Programmatically applying a coupon when conditions are met

This can work, but it introduces complexity around session handling, expiry, edge cases, and potential misuse. For that reason, most teams avoid this unless there is a strong UX reason.

Plugin based rule engines
Some advanced WooCommerce discount plugins allow auto apply rules based on user role, login status, or URL parameters. These still cannot read Klaviyo segments directly, but they can be combined with cookies or landing page parameters as a bridge.

Best practice recommendation
For mailing list incentives, sending a discount code via Klaviyo remains the cleanest, safest, and most scalable approach. It aligns with platform capabilities, keeps checkout logic simple, and gives you full visibility into performance and redemption.

If you need true auto applied discounts tied to customer state, that is best treated as a custom development task rather than a configuration change.

Hi ​@digiphore,

To add onto what Talha mentioned, the best way to set this up is to create flows triggered by the lists/segments that people are joining when they fill out your forms. In each flow, add an email, and include the relevant coupon that you want to send to people when they join that list or segment. Right now, it’s not possible to add the coupon code to a URL to automatically apply to the cart, however.

​@digiphore,

Do you mind if I ask what sort of discounts you’re creating? When you create unique coupons for WooCommerce with Klaviyo, these coupons are single-use, so they’d only be able to use the discount once. Article here explains this process. Are you using a different method of creating coupons?

On-going 10% off if the customer is a subscriber to our Mailing List.

​@digiphore,

Got it. In that case, I’d recommend creating a static coupon in WooCommerce for 10% off, that can be used multiple times, and sharing that coupon in emails you send customers in your list. This would be the best method, as the dynamic coupons created in Klaviyo are single-use. 

Thanks - I am going to give the custom attributes and rules a go. If that doesn’t work then I will definitely fall back to this.  Thanks again

Hello. In WooCommerce, mailing list discounts are usually handled by connecting your signup form to a coupon system. When a customer signs up for your mailing list through an embedded form, the integration with services like Mailchimp or Klaviyo can automatically send them a unique coupon to use at checkout. Alternatively, plugins like WooCommerce Smart Coupons, Dynamic Pricing & Discounts, or AutomateWoo can detect that a user is a subscriber and automatically apply a discount at checkout. There’s no built-in way in WooCommerce to do this, so it requires a plugin or mailing list integration.