Here’s why: Klaviyo doesn’t track every event. Especially not on every Shopify ecommerce store.

In this blog, you’ll learn:

• Why Klaviyo often fails to trigger abandoned cart flows
• How to set up your flows correctly
• How TrackBee captures the missing 30% of cart abandonment data, backed by real case studies

Why Klaviyo misses abandoned cart events

Klaviyo relies on client-side tracking, which means it depends on browser cookies and scripts running on your online store.

This creates multiple blind spots:

Cookies are blocked or cleared

Safari and iOS limit how long first-party cookies can persist, often removing them after just 24 hours if there’s no active engagement. On top of that, many website visitors use ad blockers that prevent Klaviyo’s script from loading at all.

If a visitor doesn’t enter their email, or returns after a day via another browser or device, Klaviyo simply doesn’t recognize them. The result? No event, no flow, no email.

Cross-browser = lost shopper

A visitor signs up via an Instagram ad in an in-app browser, then returns later via Chrome. Klaviyo no longer knows who this cart abandoner is.

Theme updates kill scripts

Shopify theme changes or app conflicts can remove Klaviyo’s tracking snippets silently, breaking your checkout page event tracking.

Example: why your abandoned cart emails aren't sending

Here’s a typical ecommerce customer journey that breaks Klaviyo tracking:

• 📱 Visitor clicks your Instagram ad
• ✉️ Signs up for your newsletter in the Instagram browser
• 🌐 Returns later via Chrome
• 🛒 Adds an item to their online shopping cart
• 🚪 Closes their phone without completing the checkout

‍

What happens?

• ❓ Klaviyo doesn’t recognize the customer or trigger the abandoned checkout flow
• ❌ No dynamic content block is shown
• 😩 No abandoned cart email is sent
• 😭 No revenue is recovered

‍

TrackBee, however, builds shopper profiles, recognizes the visitor, and triggers the flow — instantly.

How to set up a strong abandoned cart flow

Let’s assume your event tracking is working. Here’s how to structure a high-performing abandoned cart flow:

✅ Use the right trigger

Use "Started Checkout" as your flow trigger, it’s more reliable than “Added to Cart”, which often fails.

✅ Add smart flow filters

• Exclude customers who have placed an order
• Exclude anyone who triggered the flow zero times since starting
• Use filters like: “Checkout started zero times”

✅ Include dynamic content blocks

• Product image, name, price
• Link back to the checkout page or use a cart recovery URL fallback

✅ Send with the right timing

• Email 1: 30 minutes after abandonment
• Email 2: 24 hours later
• Email 3: 48–72 hours later with an incentive (like to activate free shipping)

✅ Optimize subject lines

Test urgency-based subject lines such as “You left something behind” or “Still interested?”

The problem: a perfect setup doesn’t help if events aren’t tracked

Even with ideal flow filters and logic, if the abandoned checkout event never reaches Klaviyo, your flow doesn’t activate.

That’s where TrackBee comes in.

How TrackBee recovers the missing events

TrackBee uses server-side tracking to capture events Klaviyo can’t see, including abandoned carts and product view events. But it goes further than that.

Shopper profiles

Every time a visitor interacts with your Shopify ecommerce store (e.g., newsletter signup, product view, or adding an item to their car) TrackBee stores that data.

This allows you to:

• Recognize website visitors across devices and browsers
• Fill missing abandoned checkout data in Klaviyo
• Trigger abandoned cart flows reliably using more available data

The result? More abandoned cart events recovered and emails sent. And more revenue, without changing your flow setup.

Case studies

HoneyBalm recovers +213% more revenue

Before TrackBee:

• Checkout events weren’t tracked
• Cart abandonment emails underperformed

After TrackBee:

• +171% more add to cart events captured
• +220% more abandonment flows triggered
• +213% more abandonment revenue generated

Mariëlle Stokkelaar B.V. generated €24K additional Klaviyo revenue

This online high-end fashion store already used Klaviyo, but many flow triggers didn’t fire.

With TrackBee:

• +85% more tracked abandoned cart events
• Generated €24,596 in additional abandoned cart revenue
• No email edits, just better tracking

Read the full case study

Your flow is only as good as your tracking

Klaviyo is a strong tool, but it can’t send all abandoned cart emails if it doesn’t recognize all visitors.

TrackBee fills in the gaps with proper server-side tracking and the use of persistent shopper profiles.

👉 Try TrackBee free and recover the abandonment events that Klaviyo doesn’t see.

‍