Add Shopify "Added to Cart" event to Klaviyo?

Migrate to Klaviyo's new "Added to Cart" event for Shopify

Migrating to Klaviyo's new "Added to Cart" event represents a major evolution for e-merchants using Shopify. This update radically transforms how your customer data is collected and used, directly impacting the effectiveness of your marketing campaigns and your conversion rates. This guide will walk you through a successful transition step by step.

Why is this migration essential in 2026?

1. Improved server-side synchronization technology

• 97% accurate visitor identification versus 75-80% with the old method.
• 35% reduction in ad blocker related issues.
• Operates without third-party cookies, anticipating their disappearance.

2. Richness of collected data

• Detailed information on product variants (size, color, SKU).
• Exact quantities selected by the customer.
• Unit prices and applied discounts.

3. Significant operational advantages

• Maintenance handled by Klaviyo without technical intervention.
• Reduced human error through native integration.
• Improved site performance by eliminating JavaScript scripts.

Step-by-step guide for a successful migration

1. Activate the new "Added to Cart" tracking on Klaviyo

• Go to Integrations > Shopify in Klaviyo.
• Activate Behavioral Events.
• Validate the new Shopify permissions.
• Verify that the event appears in Metrics.

2. Update segments in Klaviyo

• Identify all segments using the old event.
• Add an "OR" condition with the new event.
• Save to capture data from both sources.

3. Adapt your automated flows

• Go to Flows and search for "Added to Cart".
• Add the new event as a trigger.
• Test filters and conditions to ensure proper functioning.

4. Conduct a testing phase

• Test adding products to the cart.
• Verify event collection in Klaviyo.
• Compare with data from the old system.

Advanced strategies to fully leverage the new event

1. Ultra-targeted segmentation

• Targeting high-value carts.
• Identifying customers who systematically abandon certain variants.

2. Improving abandoned cart campaigns

• Dynamic content displaying the exact variants added.
• Highly relevant product recommendations.

3. In-depth behavioral analysis

• Detection of friction points in the purchasing journey.
• Analysis of add-to-cart behaviors by traffic source.

Critical points to monitor during and after migration

1. Managing the dual tracking period

• Keep both systems active for 7 to 14 days.
• Compare metrics before deactivating the old tracking.

2. Potential variations in metrics

• Increase in the number of captured events.
• Possible apparent drop in cart-to-purchase conversion rate.

3. Marketing team training

• Organize a session on the new available data.
• Document the changes made.

Conclusion: Turn this migration into a competitive advantage

The migration to Klaviyo's new "Added to Cart" event for Shopify represents much more than a simple technical update. By applying these recommendations, you will improve the accuracy of your data, refine your marketing campaigns, and boost your conversions.

E-merchants who quickly adopt this new technology will gain a significant advantage: finer segmentation, advanced personalization, and more effective campaigns. Start today to stay at the forefront of e-commerce marketing!