Email marketing automation for e-commerce: flows that sell while you sleep
- Flows generate 41% of all email revenue with only 5.3% of the total send volume, with an RPR 18 times higher than campaigns (Klaviyo 2026)
- Abandoned cart flow: highest RPR of all flow types, up to 20% of abandoned carts recovered, quickly generating tens of euros in revenue per email sent for higher order values
- Welcome flow: 45-50% open rate and 8-12% conversion to first purchase when sequences are correctly set up
- Klaviyo is the standard for Shopify: real-time data sync of purchases, product page visits, and customer profiles forms the raw material for every personalized flow
- Email generates €36 per euro spent, more than any other marketing channel, including paid ads (Litmus 2025)
- Without automation, you miss out on structural revenue that your competitor with identical products already captures through automated follow-up
Every day, Shopify webshops miss out on revenue they could have already earned. Not due to a lack of visitors or products, but because there's no follow-up. No reminder for the customer who abandoned their cart. No welcome email for the new subscriber. No follow-up after last week's purchase.
Email marketing automation solves this. With the right automated flows, your Shopify webshop earns revenue even when you're not actively involved. Not through bulk mailings to your entire list, but through targeted messages at precisely the right moment for the right person. In this article, we explain which flows every e-commerce entrepreneur absolutely needs, how to set them up in Klaviyo, and why they deliver the highest return of any marketing channel.
What is email marketing automation and how does it work in e-commerce?
Email marketing automation is the sending of emails that are automatically triggered by customer behavior, without manual work or scheduled newsletters. A customer performs an action on your webshop, and the system responds immediately with the right message at the right time.
For e-commerce, the most relevant triggers are:
A newsletter subscription via a popup or checkout
Adding a product to the shopping cart without purchasing
Viewing a product page without taking action
Placing or receiving an order
Long-term inactivity of a previously active customer
The system that converts these triggers into emails is called a flow or sequence. For Shopify webshops, Klaviyo is the standard. The integration synchronizes in real-time: purchases, product page visits, order values, and customer profiles automatically become available as segmentation and personalization data. This data is the raw material for every automated message.
Why do automated flows perform drastically better than regular campaigns?
Flows perform so much better than campaigns because they react to behavior, not a calendar. Klaviyo's 2026 Benchmark Report shows that flows generate 41% of all email revenue with only 5.3% of the sending volume. The average revenue per recipient (RPR) is 18 times higher than with standard campaigns.
The difference lies in relevance and timing. A campaign reaches everyone on the same day with the same message. A flow reaches a specific customer at the moment they have just viewed a product, abandoned a cart, or placed an order. The context of the message aligns with what the customer has just done, and that directly translates into higher conversions.
“Many companies approached their customers purely transactionally. They didn't realize the value of the relationship, both before and after the purchase.”
Compare it to a physical store: a campaign is a mass mailing that everyone receives at the same time. An automated flow is an employee who knows exactly when a customer needs attention and responds at that moment, even in the middle of the night.
Which flows are mandatory for every Shopify webshop?
Five flows are the foundation. Without these five, you demonstrably miss out on revenue. Any other flow you add afterwards should be based on your own data and customer behavior.
What ClickForest observes in practice with Flemish e-commerce clients: most webshops that come in for a website audit have at most one active flow, and it's often poorly configured. No segmentation, no A/B testing, no timing optimization. The benchmarks below are achievable, but only if the flows are set up correctly.
Benchmarks based on Klaviyo Q4 2024 data for e-commerce webshops (original data in USD). RPR values are indicative and vary by sector, order size, and list size.
How to build a welcome flow that converts?
The welcome flow delivers an average of 8-12% conversion to first purchase and an open rate of 45-50%, the highest of all automated flow types. This makes it the most underutilized opportunity for Flemish e-commerce webshops: new subscribers are most receptive to your brand at this moment, and that attention only lasts a few days.
Build the welcome flow in three to four emails:
Email 1 (immediately after signup): Thank you and brand introduction. No hard selling. Tell them who you are and why it's relevant to the customer. Show your values, your story, and what sets you apart.
Email 2 (day 2-3): Most popular products or editorial overview. Optionally, a discount code or free shipping as a trigger for the first purchase.
Email 3 (day 5-7): Social proof. Reviews, customer stories, or media attention. Give the new subscriber a concrete reason to trust.
Email 4 (day 10-14): Final push. Urgency without manipulation: discount code expires tomorrow, or limited stock of a recommended product.
“Our automated welcome series allows us to share our brand story with everyone who signs up, which helps us convey the uniqueness of our brand. Email automation makes it possible for a small team like ours to show customers that we value a genuine connection.”
What ClickForest sees in practice: most webshops start with one welcome email, and that's already a huge step. One relevant welcome email performs three to five times better than no flow at all. You then add complexity layer by layer based on what your data tells you.
How do you recover lost revenue with an abandoned cart flow?
An abandoned cart flow recovers an average of 3-5% of abandoned shopping carts, with an RPR of approximately $3.65 per recipient (USD, Klaviyo benchmark). For webshops with order values above $200, this RPR increases to $14 or more. Since an average of 70% of all shopping carts are abandoned without a purchase, this is the fastest return on automation investment for most Shopify webshops.
Use a series of three emails:
Email 1 (1 hour after abandonment): Friendly reminder. Show the abandoned products with image and price. No discount yet. Many buyers still purchase without extra incentive.
Email 2 (24 hours later): Lower the barrier. Add reviews or product benefits. Emphasize your return policy or warranty if price is the deterrent.
Email 3 (48-72 hours later): Optional discount or free shipping. Urgency: "This product is popular and may sell out." Klaviyo automatically stops the series if the customer makes a purchase.
Also link your abandoned cart flow to your CRO strategy: if many visitors abandon their cart at a specific point in the checkout, that's a signal to improve the checkout itself, not just optimize the follow-up.
What does a post-purchase flow do for customer loyalty and repeat purchases?
A well-designed post-purchase flow increases repeat purchases by 10-15% by actively guiding customers in the 45 days after their first order. It is also the most cost-effective retention tool: you send to people who have already purchased, at the moment their engagement is highest.
Customers are most receptive to your brand immediately after a purchase. Those who utilize this period build customer loyalty. Those who ignore it leave repeat purchases to chance.
Build the flow in four steps:
Email 1 (immediately after purchase): Order confirmation with expectation management. No upsell. Confirm that the choice was good.
Email 2 (day 3-5): Product inspiration or usage tips. How to get the most out of the product? This increases satisfaction and reduces returns.
Email 3 (day 10-14): Review request. Good reviews are raw material for your welcome flow, your product page conversion, and your advertisements.
Email 4 (day 30-45): Repeat purchase trigger. Related products or additions based on the first purchase via Klaviyo's product recommendations.
Webshops that combine a strong post-purchase flow with good AI personalization see a higher customer lifetime value and lower acquisition costs over time. The customer you already have is cheaper than a new customer via Google Ads or Meta.
How do you reactivate dormant customers with a win-back flow?
A win-back flow recovers an average of 5-8% of dormant customers, at a fraction of the acquisition cost of a new visitor via paid advertising. At the same time, it protects your sender reputation: inactive contacts that you never try to reactivate drag down your deliverability.
Target the flow to customers who haven't made a purchase or opened an email in 60 to 90 days.
Structure the flow in three emails:
Email 1: "We miss you." No discount yet. Remind them of what they previously bought or viewed. Personal and warm in tone.
Email 2 (7 days later): Incentive. A temporary discount or free shipping as an activation trigger. Link to new offers or seasonal relevance.
Email 3 (14 days later): Last chance. After that: systematically remove inactive profiles from your active list. A smaller, engaged list performs better than a large, dormant one.
Do you want to know which flows your webshop is missing and what that specifically costs in revenue? Our marketing automation service helps you implement and measure the right flows, linked to your Shopify data.
How do you measure the true return on email automation?
Don't focus on open rates, but on revenue per recipient (RPR) and attributed revenue per flow. Open rates have become unreliable due to Apple's Mail Privacy Protection (MPP): they are recorded when tracking pixels are automatically loaded, even if no one has actually opened the email. RPR and attributed revenue are the only metrics that tell you whether your automation is actually generating revenue.
“Owned revenue is the only revenue metric we look at. We celebrate owned revenue milestones and trust that if our customers are successful, so are we.”
The metrics that truly matter:
RPR (revenue per recipient): Comparable per flow type and over time
Attributed revenue per flow: Total revenue that Klaviyo attributes to a specific flow
Conversion rate per flow: Percentage of recipients who make a purchase
List growth rate: Net growth of your active email list per month
Unsubscribe rate: Signal of irrelevance or too high sending frequency
Link your email performance to GA4 for cross-channel insights. Klaviyo's own attribution model provides a good indication of email-specific revenue, but compare it with your GA4 data to avoid double attribution.
Klaviyo, Omnisend, or Shopify Email: which platform do you choose?
For Shopify webshops that are serious about growth, Klaviyo is the standard choice. The integration with Shopify is the deepest on the market: customer data, order history, product page visits, and real-time browsing behavior are automatically synchronized and form the segmentation basis for all flows. No other platform offers you that combination of data quality and automation depth for e-commerce.
Omnisend and Shopify Email exist, but for those who want to seriously optimize, they are too limited.
"Data is always messy, even with the best intentions and the best teams. But we strive too much for perfection, especially when it comes to personalization. I would say that progress always wins over perfection. Use the data you have, launch the campaign, and start testing."
Leah Miranda, Manager Lifecycle Marketing at Zapier - https://www.litmus.com/blog/2025-state-of-email-crossover-recap
Omnisend is a good alternative for smaller budgets, offering solid flows and excellent multichannel options (email + SMS + push). Shopify Email is suitable for new webshops with a simple profile, but it lacks the segmentation depth and A/B testing capabilities needed for serious optimization.
The choice depends on three factors: the number of active profiles in your list, the complexity of your segmentation strategy, and whether you want to integrate SMS marketing. In doubt? Start with Klaviyo's free plan (up to 250 profiles) and scale up later. What ClickForest observes: those who switch from Mailchimp or Shopify Email to Klaviyo typically see a direct increase in flow attribution, not because the flows are inherently better, but because the segmentation and timing are finally accurate.
More about AI tools for Shopify automation can be found in our overview of the best apps per task. Also, check out our guide on marketing automation for a broader perspective on what else you can automate beyond email.
Where do you start if you don't have email automation running yet?
Start with the abandoned cart flow and the welcome flow. Together, these two flows cover the majority of automation revenue for almost every Shopify webshop, are technically the quickest to set up, and don't require a large email list to show immediate results.
Email marketing automation for e-commerce is not an add-on to your performance marketing. It is the foundation of your customer relationships. Advertisements attract visitors. Flows convert those visitors into customers and retain them. Without automation, you repeatedly pay for attention you've already earned.
The five essential flows are an actionable priority list: welcome flow, abandoned cart, browse abandonment, post-purchase, and win-back. Start with one flow if you're currently at zero. Then, add layer by layer based on what your data tells you. Perfection comes later, presence is now.
Are you already active with e-commerce in Belgium but still missing the right flows? Or are flows already running, but you're unsure if they're properly set up? Contact us or book a video call for a direct assessment of your current email marketing automation setup.
🚀 More leads, higher conversion, better ROI
This article provided insights. Now it's time for action. Whether you want to build a profitable webshop, generate more revenue from performance marketing or SEO, or grow with AI marketing - we help you make concrete progress.
💬 Discuss your challenge directly with Frederiek: Schedule a free strategy call or send us a message
📧 Prefer to email? Send your question to frederiek@clickforest.com or call +32 473 84 66 27
Strategy without action remains theory. Let's take your next step together.
Frequently Asked Questions about email marketing automation
What is the difference between an email flow and an email campaign?
Which email flow generates the most revenue for a Shopify webshop?
How long does it take to connect Klaviyo to Shopify?
How many emails are in an effective abandoned cart flow?
Is email marketing automation also useful for small Shopify webshops?
How much does Klaviyo cost for a Shopify webshop?
How do I correctly measure the success of my email flows?
When should I send a win-back flow versus a regular newsletter?
What is a good open rate for an abandoned cart email?
How do I ensure my automated emails don't end up in the spam folder?
Sources and references
Email marketing benchmarks and statistics:
Klaviyo: "2026 Email Marketing Benchmarks by Industry" - https://www.klaviyo.com/products/email-marketing/benchmarks
Klaviyo: "Ecommerce Email Marketing Benchmark Report" - https://www.klaviyo.com/marketing-resources/ecommerce-benchmarks
Litmus: "Email Marketing ROI Guide" - https://www.litmus.com/resources/email-marketing-roi
Omnisend: "2026 Ecommerce Email Marketing Statistics" - https://www.omnisend.com/blog/email-marketing-statistics/
E-commerce automation and Shopify:
Shopify: "Ecommerce Marketing Automation: Email, SMS & Retargeting" - https://www.shopify.com/enterprise/blog/automation-complexity
Shopify: "Abandoned Cart Emails: Examples & Best Practices" - https://www.shopify.com/blog/abandoned-cart-emails
Industry research and thought leadership:
Litmus: "2025 State of Email Crossover Recap" - https://www.litmus.com/blog/2025-state-of-email-crossover-recap
SaaStr: "Klaviyo CEO Andrew Bialecki interview" - https://www.saastr.com/klaviyo-ecommerce-ceo-andrew-bialecki/
