If your Klaviyo open rates have started to flatten, your campaign clicks are sliding month over month, or your unsubscribes have crept higher than they used to be, there is a strong chance that the problem is not your subject lines, your design, or even your offers. The problem is almost certainly your segmentation. Or more accurately, the lack of it.
Most ecommerce brands send the same campaigns to most of their list. They blast every promotion to everyone who has ever signed up, hoping volume will make up for relevance. For a short while it works. Revenue per send looks fine. The list seems healthy. Then somewhere between 5,000 and 50,000 subscribers, the wheels start to come off. Engagement drops. Inbox placement weakens. Klaviyo flags fewer profiles as active, which quietly affects every flow you run.
The fix is not to send more emails. It is to send smarter ones. Segmentation is one of the few levers in email marketing where you can genuinely lift revenue without sending a single additional message. We have seen brands meaningfully grow their email channel just by tightening who receives what, with the same number of campaigns going out per month.
Here are the segmentation strategies that consistently move the needle for the DTC brands we work with at EHABY.
Start With Engagement Based Segmentation
Before you build anything fancy, build this one. Engagement based segmentation simply means splitting your list into people who actively engage with your emails and people who do not. In Klaviyo, this usually translates to a 30 day engaged segment, a 90 day engaged segment, and a 180 day engaged segment, layered with anyone who has clicked an email in the past 90 days.
Once you have these segments, you treat them differently. Your highly engaged subscribers can receive your full campaign calendar. Your less engaged subscribers should receive fewer emails, often only your most important promotions and content. Your dormant subscribers should be moved into a winback flow and eventually suppressed if they do not respond.
This single change does three things at once. It protects your sender reputation by reducing sends to people who never open. It improves your average open and click rates because your sends are going to people who actually want them. And it brings down your Klaviyo bill over time, because you stop paying to email profiles that bring no value.
Layer In RFM Segmentation
RFM stands for Recency, Frequency, and Monetary value. It is one of the oldest segmentation frameworks in retail and it is just as relevant inside Klaviyo today. Klaviyo’s built in RFM analysis automatically groups your customers into segments like champions, loyal customers, at risk, and inactive, based on how recently they bought, how often they buy, and how much they spend.
The power of RFM is that it tells you exactly who deserves what kind of message. Your champions should receive thank you content, early access to new launches, and loyalty perks. Your at risk customers need targeted winback messaging tuned to their last purchase. Your inactive customers either come back through a structured reactivation effort or get cleaned off the list.
Most stores have an RFM dashboard sitting unused inside their Klaviyo account. Turning it into a working segmentation strategy is one of the highest leverage changes any growing brand can make. It is also one of the most commonly missed opportunities we find when we audit founder built accounts.
Use Behavioral Segments For Relevance
Behavioral segmentation is where your campaigns stop feeling generic and start feeling personal. Klaviyo tracks a remarkable amount of behavior natively, including products viewed, products purchased, categories browsed, total spend, and average order value. Your job is to turn that data into segments that match how you talk to those customers.
A few examples that work especially well for ecommerce. A segment of customers who have purchased a specific product can receive replenishment reminders timed to when they are likely to run out. A segment of customers who have browsed a category multiple times but never purchased can be targeted with educational content about that category. A segment of high spenders can receive premium product recommendations and early access offers, while value seekers can receive bundle deals and promotions.
The principle is simple. Send the right message to the right person at the right moment. Klaviyo gives you the tools to do this. Most stores just never use them.
Build VIP Segments Around Your Best Customers
Most ecommerce brands earn the majority of their revenue from a relatively small group of repeat buyers. Identifying and nurturing those customers should be a core part of your retention strategy, not an afterthought.
A VIP segment can be defined in many ways. Customers who have made three or more purchases. Customers whose total spend crosses a meaningful threshold for your store. Customers who have purchased within a specific timeframe and have an above average order value. The exact definition will depend on your business.
Once the segment is built, treat it like the asset it is. VIP customers should hear from you in a different voice than the rest of your list. They should get earlier access, more personal messaging, surprise rewards, and recognition for their loyalty. The lifetime value of a well treated VIP customer is many times higher than the average subscriber, and the cost to retain them is a small fraction of the cost to acquire someone new.
Use Predictive Segments For Smarter Timing
Klaviyo’s predictive analytics, built on its growing customer data platform, can forecast things like next expected order date, expected lifetime value, and churn risk for individual customers. These predictive properties are not perfect, but they are accurate enough to power some genuinely valuable segments.
For example, a segment of customers whose next expected order date is within the next 14 days can receive a gentle nudge to come back, perhaps featuring a product they have purchased before. A segment of customers identified as high churn risk can be routed into a tailored winback effort earlier than a calendar based approach would catch them. A segment of customers with high predicted lifetime value can be flagged for white glove treatment from the moment they make their first purchase.
Predictive segmentation is one of those areas where the data does the heavy lifting for you. The brands that use it well tend to be ones that have spent the time setting up clean customer data, which is exactly the kind of foundational work that pays back for years.
Combine Segments For Real Power
The biggest mistake even sophisticated brands make is treating each segment as a standalone bucket. The real power of Klaviyo segmentation comes when you layer segments together.
Engaged in the last 30 days plus has purchased category X plus has not purchased in the last 60 days gives you a beautifully targeted reactivation audience for that category. Highly engaged plus VIP plus has not seen this month’s new collection becomes the perfect launch audience for a premium product. Engaged plus at risk plus high lifetime value tells you exactly who you cannot afford to lose.
This is how brands quietly double their email revenue without doubling their sends. It is not magic. It is the right message reaching the right people at the right moment, again and again, until the channel compounds into something meaningful.
The Honest Truth About Segmentation
Setting up these segments properly takes work. You have to think carefully about how you define each one, how they interact, how they affect your flows, and how you will measure success over time. Done badly, segmentation creates a tangled mess that is harder to manage than a single broadcast list. Done well, it is the single most powerful lever you have in Klaviyo.
This is exactly the kind of strategic work we handle for our clients at EHABY. Our Engine and Ascend packages include advanced segmentation built around your real customer behavior, layered with the flow logic and campaign strategy to actually use those segments well. If your open rates have flattened, your unsubscribes have crept up, or you suspect there is more revenue hiding in your list than you are currently earning, book a free Klaviyo strategy call and we will show you exactly where to start.