Klaviyo Win-Back Flow: Re-Engage Lapsed Customers
TL;DR: A strategic Klaviyo win-back flow is essential to re
We recently re-engaged 15% of an apparel client’s ‘dead’ customer list. These were people who hadn’t bought anything in over a year. Most brands write them off. We saw them as a multi-six-figure opportunity sitting dormant in Klaviyo.
The problem with lapsed customers is that they were once your best asset. They chose you, spent money with you, and then went quiet. A generic “we miss you” email isn’t enough to bring them back. It requires a specific, multi-step process. This is the exact Klaviyo win-back flow framework we used to reactivate one in seven of them.
Understanding the lapsed customer challenge: Identifying the apparel client’s needs
We started working with an Australian apparel brand doing around $8M a year. They had a solid business, but like many, their focus was almost entirely on new customer acquisition. Their existing customer list was a goldmine they were ignoring.
When we audited their Klaviyo account, we found a massive segment of inactive customers. We defined ‘lapsed’ as anyone who hadn’t made a purchase in the last 12 months but had purchased at least twice before. This filter is important. It focuses on former loyalists, not one-time tyre-kickers.
The segment contained over 60,000 subscribers.
Let that sink in. Sixty thousand people who had already proven they liked the brand enough to buy from it multiple times. Their average order value was $115. A simple calculation showed the potential revenue just sitting there, waiting to be unlocked. Even a small reactivation rate would mean a significant revenue lift.
This wasn’t just about a quick sales bump. For an apparel brand, re-engaging a past customer is far more profitable than acquiring a new one. These customers already know their sizing and understand the product quality. The friction to purchase is lower.
A targeted Klaviyo win-back flow was the obvious solution. Before we built anything, we needed a baseline. We analysed the segment’s past behaviour. We looked at what categories they bought from, their discount sensitivity, and their original acquisition source. This data formed the foundation of our strategy. Ignoring it is like trying to build a house with no blueprints. It’s a common mistake I see agencies make. If you need help with this initial stage, it’s something we cover in a free Klaviyo audit.
Our strategic Klaviyo win-back flow framework: Designing the sequence
A single “we miss you” email doesn’t work. It’s low-effort and customers can tell. We designed a strategic four-part sequence. The goal of each email was distinct, building on the last. This approach is similar to our Elite Brands Framework for Your Klaviyo Welcome Flow, where every step has a clear purpose.
First, we built the segmentation in Klaviyo. The trigger was simple: a customer enters the segment when they have not purchased for 365 days, and have purchased at least twice in their lifetime.
The flow itself was structured like this:
Email 1: The Gentle Nudge (Day 1) The goal here is pure re-engagement, not a hard sell. The subject line was simple: “Still a good fit?”. The content focused on what was new with the brand since they last shopped. We highlighted new collections and reinforced the brand’s core values. There was no discount. We wanted to see who was still listening.
Email 2: Social Proof & Bestsellers (Day 5) If they didn’t open or click the first email, this one followed up. It showcased the top-rated, bestselling products. We used dynamic content blocks to show products from the category they’d previously purchased from. The message was clear: this is what people like you are buying and loving right now. It taps into the fear of missing out.
Email 3: The Value Offer (Day 11) This is where we introduced an incentive, but not a straight discount. We offered a compelling bundle deal or a free gift with purchase over a certain threshold. For an apparel brand, this works better than a simple 10% off. It increases AOV and feels more like a bonus than a desperate plea for a sale.
Email 4: The Direct Offer (Day 18) For those who still hadn’t purchased, we made a direct, time-sensitive offer. A 15% off coupon that expired in 72 hours. This creates urgency. It’s the final attempt to prompt action before we consider moving them to a sunset segment.
Crucially, we set up clear exit conditions. If a customer made a purchase at any point, they were immediately removed from the flow. If they clicked a link in Email 1 or 2 but didn’t buy, they might skip straight to Email 4. The flow needs to be smart enough to adapt to user behaviour.
Klaviyo win-back flow implementation: From setup to optimisation
Building the flow is one thing. Making sure it actually works is another. The biggest challenge with sending emails to a year-old segment is deliverability. Internet Service Providers (ISPs) like Gmail and Outlook are suspicious of accounts that suddenly email tens of thousands of inactive subscribers. It looks like spam.
A bad send can damage your sender reputation for months. We took a few critical steps to avoid this.
First, we ran the 60,000-person list through a cleaning service. This removed invalid email addresses and known spam traps. It cost a little, but it’s cheap insurance against getting blacklisted.
Second, we didn’t email everyone at once. We broke the main segment into smaller, 5,000-person chunks. We enabled the flow for one chunk at a time over two weeks. This “warms up” the sending infrastructure and shows ISPs that we’re responsibly re-engaging an old list, not blasting spam. This is a core principle of good Klaviyo Deliverability.
We also had to ensure compliance. The Australian Communications and Media Authority (ACMA) has strict rules about consent. While these users had previously opted in, re-engaging them after a long period of silence requires care. Every email had a clear unsubscribe link and we honoured all requests immediately. You can read the full details in the Australian Spam Act 2003.
During the rollout, we monitored performance daily. We A/B tested subject lines on the first two emails. For example, we tested “Still a good fit?” against “A lot has changed”. The question-based subject line won, with a 4% higher open rate. Small optimisations like this compound across a large segment. We also watched for negative signals like high unsubscribe rates or spam complaints, ready to pause the flow if anything looked wrong. Thankfully, our careful approach paid off. If you’re unsure about your current Klaviyo setup or deliverability, a free Klaviyo audit can help pinpoint areas for improvement.
Analysing the Klaviyo win-back flow results: The 15% re-engagement
The numbers from this campaign were strong. They proved the value that was locked away in that lapsed customer list.
The headline figure was the 15% re-engagement rate. We need to be specific about what this means. We defined “re-engaged” in two ways: 1. They made a purchase directly attributed to the flow. 2. They opened or clicked an email in the flow, signalling they were still an active subscriber, even if they didn’t buy immediately.
Here’s the breakdown: * 5.2% of the 60,000-person segment made a purchase. This translated to over 3,100 orders. * An additional 9.8% opened or clicked an email, moving them out of the “lapsed” category and into our regular engaged segments for future campaigns.
The revenue impact was significant. The 3,100+ orders generated just over $372,000 in direct revenue over the 90-day campaign period. The average order value from this cohort was $120, which was slightly higher than the site-wide AOV of $115. This suggests the incentive strategy worked to encourage bigger baskets, not just clearance sales.
Let’s look at the flow’s email metrics: * Email 1 (Nudge): 18% Open Rate, 1.1% Click-Through Rate. This is solid for a cold segment. * Email 2 (Social Proof): 15% Open Rate, 1.8% Click-Through Rate. Lower opens, but higher click intent. * Email 3 (Value Offer): 21% Open Rate, 3.5% Click-Through Rate. The offer clearly drove interest. * Email 4 (Direct Offer): 24% Open Rate, 4.1% Click-Through Rate. Urgency and a clear discount drove the highest engagement and the majority of conversions.
Compared to the client’s previous attempts, which involved a single 10% off email sent once a year, this flow performed over 400% better in terms of revenue per recipient. It shows the power of a strategic, multi-touch sequence. You can see more examples of how we track performance across all our results.
Key takeaways for your own lapsed customer flow
Reactivating old customers isn’t magic. It’s a process. Based on this project and dozens of others we’ve run, here are the key lessons you can apply to your own win-back strategy.
Segmentation is everything. Don’t just target everyone who hasn’t bought in a year. Start with customers who have purchased multiple times. They have a stronger prior connection to your brand. Get more granular with a proper Klaviyo segmentation guide.
A multi-step flow always wins. One email is not a strategy. It’s a lottery ticket. A sequence that builds from a gentle reminder to a clear offer gives you multiple chances to find the right message that resonates with each individual.
Test your incentives. Don’t assume a 10% discount is the answer. For this apparel client, a free gift with purchase or a bundle deal performed very well in Email 3. This protected their margins and increased AOV. Test what works for your brand. It might be free shipping, a gift card, or early access to a new product.
Monitor deliverability like a hawk. You can have the best emails in the world, but they’re worthless if they land in the spam folder. Clean your list before you start. Warm it up by sending in batches. This protects your sender reputation, which is one of your most valuable marketing assets.
Know when to let go. Not everyone will come back. That’s okay. For the 85% who didn’t re-engage, the next step is a sunset flow. A final, last-chance email asking them if they want to stay subscribed. If they don’t respond, remove them from your active list. This keeps your list healthy, improves overall deliverability, and lowers your Klaviyo subscription costs.
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A well-executed win-back flow is one of the highest ROI activities you can run in your email program. It costs almost nothing to implement beyond your time and it targets people who have already proven they want to buy from you.
If you have a lapsed customer segment that you’ve been ignoring, there is almost certainly revenue trapped inside it.
