Customer links with Klaviyo

Create customer links that automatically pre-fill checkout with the customer's shipping details - name, email, and address already entered. This reduces friction and increases conversion on any Klaviyo campaign.

Why Use Customer Links

Every extra field a customer has to fill out is a chance to lose them. With customer links, returning customers skip straight to payment:

• Pre-filled checkout - Name, email, and shipping address already entered
• Works with any campaign - Win-backs, promotions, new product launches, newsletters
• Higher conversion rates - Less friction means more completed purchases
• Optional promotions - Add discounts, free shipping, or gifts

Warning: This guide requires Klaviyo to be connected via Checkout Links. See Setting up Klaviyo integration first.

Quick Setup

Replace [customerId] in your link with this Klaviyo variable:

{{ person.id|default:'' }}

Your final link:

https://yourstore.com/your-campaign?c={{ person.id|default:'' }}

Create Your Customer Link

1. Create a new link

   Go to Checkout Links and click Create Link.

2. Name your link

   Give it a descriptive name like "Win-back Campaign" or "VIP Sale".

3. Set a custom slug

   Enter a custom slug that matches your campaign, like winback or vip-sale.

4. Enable Dynamic mode

   Toggle on Dynamic to enable customer data pre-filling via the ?c= URL parameter. When a customer ID is passed, their checkout will be pre-filled with their saved details.

5. Add products (optional)

   In the Cart card, add any products you want to feature in this campaign. Unlike reorder links, customer links don't automatically add previous purchase items.

Add Promotions (Optional)

Pair your customer link with promotions to drive action:

• Win-back campaigns - "We miss you! Here's 20% off"
• VIP sales - Early access with exclusive discounts
• New product launches - Free shipping on the new collection
• Seasonal promotions - Holiday discounts for existing customers

Tip: Combine with Pre-checkout extensions to let customers modify their cart before checkout - great for fashion brands where customers might need to change sizes, or for adding optional upsells.

Copy Your Link

1. Save your link

   Click Save to create your customer link.

2. Copy the URL

   Copy the link URL. It will look something like:

   https://yourstore.com/your-campaign?c=[customerId]
   

Add the Link to Your Klaviyo Campaign

1. Open your flow or campaign

   In Klaviyo, navigate to the flow or campaign you want to add the link to.

2. Edit your email template

   Open the email template.

3. Find your call-to-action button

   Locate the CTA button (e.g., "Shop now" or "Claim your discount").

4. Replace the link URL

   Paste your Checkout Links URL into the button link field.

5. Add the Klaviyo variable

   Replace [customerId] with this Klaviyo variable:

   {{ person.id|default:'' }}
   

   Your final link will look like:

   https://yourstore.com/your-campaign?c={{ person.id|default:'' }}
   

Info: This uses the Klaviyo person ID, which is always available on every profile. If you have Shopify customer IDs synced to Klaviyo, you could use those instead, but the person ID is more reliable.

Test Your Campaign

1. Save your template

   Save your changes in Klaviyo.

2. Send a test email

   Use Klaviyo's preview and test feature. Select a customer profile.

3. Click the CTA button

   Open the test email and click your button.

4. Verify the checkout

   Confirm that customer details are pre-filled (name, email, shipping address) and any promotions are applied.

Related Resources

• Setting up Klaviyo integration - Connect your Klaviyo account (required for customer links)
• Pre-checkout Extensions - Show offers or collect info before checkout
• Reorder links - Pre-fill checkout and add previous purchase items
• Abandoned cart recovery - Recover abandoned carts with Klaviyo