You're Leaving Money on the Table: The Real Cost of Not Connecting Lightspeed Retail X to Klaviyo

May 16, 2025

If you’re running a retail business with Lightspeed Retail X (X-Series) as your in-store point-of-sale (POS) system and using Klaviyo for your email marketing—but you’re not connecting the two—you’re missing out on serious revenue.

In 2025, omnichannel is not a buzzword. It’s the baseline. And if your systems don’t talk to each other, you're not just missing out on automation. You’re missing actual dollars.

Let’s break down why integrating your in-store POS with your email marketing matters, what kind of sales you're leaving behind, and how Klavx helps you bridge that gap.

Real Talk: What Happens When Your POS Data Isn’t Synced?

Most retailers focus their email marketing on online buyers. But guess who’s getting ignored?

👎 Your loyal in-store customers.
👎 Your VIPs who buy in person, but never see a follow-up email.
👎 First-time walk-ins who could’ve become lifetime fans.

Lightspeed Retail X is a powerful POS, but out of the box, it doesn’t talk to Klaviyo. That means:

No follow-up emails after a store visit
No abandoned browse triggers for in-store shoppers
No segmentation for high-value walk-in customers
No way to turn foot traffic into flow traffic

And it adds up—fast.

The Numbers Don't Lie

Let’s say you average 300 in-store transactions per week. If even 10% of those customers would respond to a follow-up offer (discount, back-in-stock alert, new collection), that’s 30 extra purchases a week.

Multiply that by 52 weeks = 1,560 extra sales per year. Even at an average order value of $80, that’s $124,800 in potential sales sitting in POS purgatory.

And that’s conservative.

The Sneaker Store Missing Loyalty Gold

A high-end sneaker retailer using Lightspeed X was running Klaviyo for email—but only syncing online store data. Their best buyers? The ones lining up in-store every Saturday.

Once they connected Klavx and started syncing in-store data to Klaviyo, here’s what changed:

Replaced "spray-and-pray" emails with precise segmentation
Sent post-purchase surveys and upsells based on POS orders
Re-engaged churned customers who hadn’t been back in-store for 3+ months

Result? A 22% increase in returning customer rate in 60 days.

Why Klaviyo Alone Isn’t Enough (If You're Using Lightspeed Retail X)

Klaviyo is amazing at:

Segmenting customer data
Creating personalised flows
Boosting LTV through automations

But it’s only as smart as the data it receives.

And Lightspeed Retail X—while one of the best cloud POS systems for modern retailers—doesn’t have a native integration with Klaviyo.

That's where Klavx comes in.

What Is Klavx?

Klavx is a lightweight, powerful integration that connects your Lightspeed Retail X-Series POS with Klaviyo. It pipes in your in-store orders, customer details, and sales data into Klaviyo—so your marketing reflects everything, not just online sales.

Set up in under 15 minutes. Zero code needed.

Once installed, it enables:

Real-time order syncing
Customer profiles updated automatically
In-store triggers for post-purchase flows
Segments based on both online and offline behaviour

It’s the missing link for omnichannel retailers.

You're Not a One-Channel Business. So Don’t Market Like One.

In 2025, the line between in-store and online is gone. Your customers expect brands to recognise them whether they shop on mobile, desktop, or at your counter.

If you’re not syncing your POS to your email marketing, you’re not just being inefficient.

You’re being forgotten.