The Tracking Gap Inside Klaviyo
I do not usually spend time recommending third-party software tools. Most ecommerce add-ons add bloat, cost too much, and fail to generate a measurable return. But when a piece of software reliably puts money straight onto a client balance sheet, I pay attention.
Here is the reality of standard tracking: Klaviyo misses roughly 20% to 30% of your store's on-site activity. A subscriber visits your site, looks at a product, and adds it to their cart. If Klaviyo fails to identify that session properly (often due to cookie lifespan limits or browser tracking constraints), the platform never registers the event. If the event is never recorded, your abandoned cart or browse abandonment flow never triggers.
That is lost money. You paid to acquire that subscriber, but your core automations failed to fire simply because the tracking dropped out.
How Cluos Solves the Identification Problem
Cluos fixes this by adding a dedicated tracking pixel to your store that maintains identification on your subscribers for longer. It does not replace Klaviyo. Instead, it runs in the background and steps in specifically when Klaviyo drops the ball.
When a visitor adds an item to their cart and Klaviyo records it, your standard Klaviyo abandoned cart flow handles the job as usual. However, if Klaviyo misses the interaction entirely, the Cluos pixel catches it and passes a separate event back into your account. This allows you to fire a mirrored recovery flow that only speaks to the people Klaviyo missed.
It acts as an automatic safety net for your most profitable automations.
The Return on Investment in Practice
We are currently managing 40 active client accounts at In-box, and we have rolled this tool out across our roster. Across those accounts, this tracking fix has recovered hundreds of thousands of dollars in otherwise lost revenue.
On one active store, our Cluos recovery flows generated roughly $5,500 in additional attributed revenue over a 30-day window. The software costs $129 per month for brands doing around a million dollars annually, scaling to roughly $200 per month for larger stores. When an expense of $129 returns over $5,000 in direct sales in four weeks, the maths is simple.
It pays for itself almost immediately.
Setting Up the Recovery Flows
One of the main reasons I like this integration is that you do not need to rebuild your automation strategy from scratch. Setup takes roughly 15 minutes.
To get it working, you take your existing top-performing flows and clone them:
- Clone your live Abandoned Cart flow and swap the trigger to the Cluos event.
- Clone your Browse Abandonment flow and update the trigger accordingly.
- Apply the same approach to your SMS cart recovery sequences.
Because the logic, copy, and offers are already proven, you do not have to write new emails. You simply duplicate what works and point it at the newly recovered audience.
Who Should Use It (and Who Should Skip It)
Here is my honest rule of thumb: you need to be generating at least $20,000 per month in attributed email revenue before installing this. If your store is doing less than that, your traffic volume is likely too low to recover enough sales to justify the monthly software fee once you factor in your product margins.
That is the limitation. If you have low site traffic, fix your top-of-funnel acquisition and foundational email capture first. But if you have consistent traffic and a healthy email list, leaving 20% of your cart abandoners untracked is leaving revenue on the table.
Final Thoughts
Tracking limitations will only get tighter as browsers continue to restrict first-party cookies and session data. Using a tool like Cluos to recover the 20% to 30% of behaviour that Klaviyo drops is one of the lowest-effort revenue wins available for established brands.
If you want help auditing your flow tracking or need an expert team to build high-converting sequences for your store, explore our email automation services.
