Klaviyo for ecommerce is an email and SMS marketing platform that connects directly to online stores such as Shopify and BigCommerce. Klaviyo stores each shopper's orders, browsing, and cart activity in one profile, then uses that data to segment customers and send automated message sequences called flows, plus one-time campaigns. Ecommerce stores use Klaviyo to welcome new subscribers, recover abandoned carts, drive repeat purchases, and win back lapsed customers across email and text.
Most ecommerce brands own Klaviyo. Far fewer actually use it.
Klaviyo for ecommerce is a widely used email and SMS setup for online stores. Klaviyo, a Boston-based company listed on the NYSE as KVYO, served more than 196,000 paying customers at the end of Q1 2026.1
Klaviyo's real value sits in the automation, segmentation, and SMS built on your store data. We build and manage these programs for Shopify and BigCommerce brands through our Klaviyo email and SMS practice, and the same gaps come up repeatedly in the accounts we audit.
What Is Klaviyo for Ecommerce?
Klaviyo is a customer data and marketing automation platform built for online stores. It combines three tools stores used to buy separately:
- A customer database. Each subscriber has a profile with orders, browsing, and engagement.
- An email and SMS engine. Both channels send from one tool, using one set of segments.
- Revenue reporting. Klaviyo attributes orders to the messages that drove them, not just opens and clicks.
Newsletter tools report who opened. Klaviyo reports who bought and predicts when they will buy again. The full range of Klaviyo services builds on those three layers.
How Does Klaviyo Work?
Klaviyo works in a loop: your store sends events, Klaviyo stores them on profiles, and events trigger messages.
Events
A Klaviyo event is a shopper action, such as Viewed Product, Started Checkout, or Placed Order, sent automatically by your store integration.
Triggers
Klaviyo defines a flow as a sequence of automated actions triggered by a behavior or event. Flows can start when someone joins a list or segment, takes an action, reaches a date such as a birthday, or sees a price drop.2
If you also run an ERP, subscription app, or reviews tool, Klaviyo integration services can send those events to the same profiles.
Klaviyo Email Marketing vs SMS: When Should You Use Each?
Use Klaviyo email for depth and storytelling, and Klaviyo SMS for short, time-sensitive messages to subscribers who gave explicit consent.
| Factor | Klaviyo email | Klaviyo SMS |
|---|---|---|
| Best for | Education, newsletters, launches | Cart reminders, restocks, shipping updates |
| Avg. flow click rate (2026) | 5.58% | 9.65% |
| Avg. campaign click rate (2026) | 1.69% | 5.6% |
| How Klaviyo bills it | By active profiles and email sends | Monthly dollar-based plan, priced per message |
| Redefine starting frequency | Two to three campaigns a week | Two to four campaigns a month |
Klaviyo's 2026 SMS benchmarks show SMS flows averaging a 9.65% click rate against 5.6% for SMS campaigns, and driving 45.2% of SMS revenue from only 7.6% of SMS sends.3 Since July 13, 2026, Klaviyo sells SMS through dollar-based monthly mobile messaging plans, with each message priced by channel, region, and number type.4 Longer texts split into separately billed segments.5
Consent rules differ in the UK and EU (GDPR and PECR), Canada (CASL), and Australia. Our Klaviyo SMS marketing services cover consent and compliance by region.
What Is the Difference Between Klaviyo Flows and Campaigns?
Klaviyo campaigns are one-time sends you schedule, like a product launch. Klaviyo flows are automated sequences that send whenever a shopper qualifies, such as abandoning a cart.
| Klaviyo email (2026) | Campaigns | Flows |
|---|---|---|
| How they send | Scheduled once, by you | Triggered by shopper behavior, always on |
| Share of email sends | 94.7% | 5.3% |
| Share of email revenue | About 59% (derived) | Nearly 41% |
| Average click rate | 1.69% | 5.58% |
Klaviyo's 2026 email benchmarks also put flow revenue per recipient at roughly 18 times that of campaigns.6
Campaigns still build your brand. The right mix is a steady campaign calendar on top of a strong set of flows.
Which Klaviyo Flows Should You Launch First?
Launch six Klaviyo flows first: abandoned cart, browse abandonment, back in stock, welcome series, post-purchase, and win-back. Timings are Redefine's starting defaults.
Revenue recovery flows
1. Abandoned cart flow
Baymard Institute puts the average documented cart abandonment rate at 70.22%,7 so the Klaviyo abandoned cart flow, triggered by Started Checkout, is the fastest win in most accounts. Our abandoned cart flow setup is usually step one.
Starting sequence for an abandoned cart flow
Message 1: email, 1 to 4 hours after abandonment
Show the product and a cart link. No discount yet.
Message 2: SMS, about 4 to 6 hours later, consented subscribers only
A short reminder with the cart link, sent within federal and state quiet hours.
Message 3: email, 24 hours after abandonment
Add reviews or social proof. Test any incentive here, not earlier.
2. Browse abandonment flow
The Klaviyo browse abandonment flow triggers when someone views a product without adding it to the cart. Send one or two emails, starting 2 to 4 hours later.
3. Back in stock flow
The Klaviyo back in stock flow alerts shoppers when a wanted item returns. Add SMS for high-demand products.
Relationship flows
4. Welcome series
The Klaviyo welcome series sends three to five messages over 7 to 14 days: brand story, signup offer, and best sellers. A tested welcome flow setup makes that first impression consistent.
5. Post-purchase flow
The Klaviyo post-purchase flow thanks the buyer, asks for a review 7 to 14 days after delivery, and suggests a next product. A good post-purchase flow drives the second order.
6. Win-back flow
The Klaviyo win-back flow starts 60 to 90 days after the last order for consumables, or 120 to 180 days for durable goods. A focused win-back flow also flags who to suppress.
How Do You Connect Klaviyo to Shopify or BigCommerce?
Install Klaviyo's native app, turn on onsite tracking, and sync customers, orders, and products. It takes minutes.
Email marketing for Shopify: connecting Klaviyo
- Install the Klaviyo app from the Shopify App Store and connect your Klaviyo account.
- Turn on onsite tracking to capture product views.
- Sync existing customers, orders, and the product catalog, and map Shopify marketing consent.
Custom events, subscription data, and consent mapping take longer, which is where a proper Shopify Klaviyo integration pays for itself.
BigCommerce follows the same steps, but multi-storefront setups need a BigCommerce Klaviyo integration that keeps each store's data separate.
How Should You Segment Your Klaviyo List?
Start with five Klaviyo segments based on engagement and purchase history. Time windows are Redefine's starting thresholds.
- Engaged subscribers: opened or clicked in 60 to 90 days. Send most campaigns here.
- First-time buyers: push for the second order.
- VIP customers: top spenders. Offer early access, not bigger discounts.
- At-risk customers: quiet past buyers. Feed them into win-back.
- Unengaged profiles: inactive 180+ days. Suppress them.
Sending to engaged segments protects deliverability and forms the base of any retention marketing program.
What Should You Automate After the First Six Flows?
Next, add conditional splits, predictive timing, and structured testing.
- Conditional splits: branch a flow so first-time buyers get a how-to email and repeat buyers get a loyalty offer.
- Predictive analytics: Klaviyo predicts lifetime value, churn risk, and expected next order date once a store has at least 500 customers with orders, 180 days of order history, and recent orders.8
- Testing: A/B test one variable at a time, such as subject line or send delay. Structured Klaviyo A/B testing keeps the learnings from getting lost.
How Do You Protect Deliverability and Stay Compliant?
Authenticate your sending domain, email engaged profiles first, and collect explicit SMS consent.
Email deliverability
Google requires senders of 5,000 or more daily messages to Gmail to use SPF, DKIM, and DMARC and to offer one-click unsubscribe. Google recommends keeping spam rates below 0.10% and never reaching 0.30%.9 Yahoo sets matching rules: SPF and DKIM, a DMARC policy, one-click unsubscribe honored within 2 days, and spam rates below 0.3%.10 If Klaviyo open rates drop, Klaviyo deliverability services can trace the cause.
SMS compliance in the US
The TCPA requires express written consent that states subscribers agree to recurring automated marketing texts and that consent is not a condition of purchase. Federal quiet hours run 8 am to 9 pm in the recipient's time zone, and violations can cost $500 to $1,500 each.11 Some states go further. Florida limits marketing texts to 8 am to 8 pm and three contact attempts per rolling 24 hours.12 Since April 11, 2025, FCC rules also require honoring opt-outs sent by any reasonable means within 10 business days.13
How Much Does Klaviyo Cost?
Klaviyo costs $0 on the free plan, which covers up to 250 profiles and 500 emails per month.14 Paid Klaviyo email plans start at about $20 per month and scale with your active profile count.15
| Active profiles | Klaviyo email plan (approx.) |
|---|---|
| Up to 250 | Free |
| Up to 500 | $20 / month |
| 1,000 | $30 / month |
| 10,000 | $150 / month |
Email prices reflect independent tracking as of August 2026. SMS is a separate dollar-based mobile messaging plan since July 2026, so older "Email + SMS from $35" figures may no longer apply. Confirm both on Klaviyo's pricing calculator.
Klaviyo counts every profile it can email as an active profile, whatever the consent status, while suppressed and deleted profiles stop counting.5 Suppressing unengaged profiles controls cost. If you are switching tools, a clean Mailchimp to Klaviyo migration keeps consent records and engagement history intact.
Is Klaviyo Right for Your Store?
Klaviyo suits stores that want email and SMS driven by detailed purchase and browsing data. It suits very small, budget-limited lists less well.
| Factor | Klaviyo | Mailchimp | Omnisend |
|---|---|---|---|
| Built for | Ecommerce data and automation | General email marketing | Ecommerce email and SMS |
| Strength | Deep store data, predictive analytics | Familiar, broad templates | Simple email and SMS setup |
| Watch out for | Cost rises with list size | Lighter ecommerce event data | Fewer advanced data features |
This table is Redefine's assessment, not a vendor feature list.
Skip Klaviyo, for now, if
- You have a few hundred subscribers and no budget for paid tools.
- You sell mainly offline or through a marketplace with no store data to sync.
Unsure where you land? A Klaviyo consultant can help you decide.
How Long Does Klaviyo Setup Take? A 30-Day Roadmap
A basic Klaviyo setup with six core flows takes about 30 days.
- Days 1 to 5: Connect and clean. Integrate your store, set up your sending domain, and import only consented contacts.
- Days 6 to 10: Capture subscribers. Launch a signup form with a compliant SMS opt-in step.
- Days 11 to 18: Recovery flows. Abandoned cart, browse abandonment, back in stock.
- Days 19 to 24: Relationship flows. Welcome, post-purchase, win-back.
- Days 25 to 28: Segments. Build the five starter segments.
- Days 29 to 30: Review. Check flow revenue, deliverability, and SMS opt-outs.
Our Klaviyo flows setup service follows this timeline.
What Ecommerce Email Marketing Mistakes Should You Avoid?
The most common Klaviyo mistakes are relying on campaigns, discounting too early, and mailing unengaged profiles.
- Relying only on campaigns. You miss the high-intent moments Klaviyo flows are built for.
- Leading with discounts. Shoppers learn to wait for a code. Save incentives for later messages.
- Mailing the whole list. Unengaged sends hurt inbox placement and add billable profiles.
- Designing for desktop first. Use mobile-first email design with one clear call to action.
"Klaviyo rarely underperforms because of the tool. It underperforms because nobody finished setting it up."A pattern from Redefine's Klaviyo audits
Klaviyo Launch Checklist
Pair your flows with conversion rate optimization on the pages they link to.
Frequently Asked Questions
What is Klaviyo used for in ecommerce?
Ecommerce stores use Klaviyo to send automated and one-time email and SMS messages based on browsing, cart, and order data.
How much does Klaviyo cost per month?
Klaviyo is free for up to 250 profiles. Paid email plans start at about $20 per month and rise with active profiles, and SMS is billed on a separate monthly plan.
Klaviyo vs Mailchimp: which is better for ecommerce?
For most online stores, Klaviyo is stronger because it uses detailed order and browsing data, while Mailchimp suits general newsletters.
Does Klaviyo work with Shopify?
Yes. Klaviyo's native Shopify integration syncs customers, orders, products, and onsite events.
Which Klaviyo flow should I build first?
Build the Klaviyo abandoned cart flow first, then the welcome series.
How long does Klaviyo setup take?
A basic Klaviyo setup with six core flows takes about 30 days, though the store connection takes minutes.
How many emails should a Klaviyo welcome series have?
A Klaviyo welcome series should have three to five emails over 7 to 14 days.
Do I need double opt-in for Klaviyo?
Klaviyo double opt-in is optional for email in most regions but improves list quality. US SMS requires express written consent.
How do I improve Klaviyo deliverability?
Improve Klaviyo deliverability by authenticating your domain, sending to engaged segments, and suppressing inactive profiles.
Can someone manage Klaviyo for me?
Yes. Many brands hand day-to-day Klaviyo work to an agency. Our Klaviyo managed services cover flows, campaigns, testing, and reporting.
Key Takeaways
- Klaviyo for ecommerce turns Shopify or BigCommerce store data into automated email and SMS.
- Klaviyo flows drive nearly 41% of email revenue and 45.2% of SMS revenue from a small share of sends.
- Launch six core Klaviyo flows first, starting with abandoned cart.
In one Redefine client result, luxury fashion brand Merlette added about $20K per month by fixing gaps in its Klaviyo lifecycle automation.
"Launch the flows, respect the inbox, and let your store data do the work."Klaviyo basics in one line
Want Klaviyo set up right the first time?
We will connect your store, build your six core flows, set up compliant SMS, and hand you a clear reporting view within 30 days.
Explore Klaviyo setup and implementation services
Sources & Citations
Primary research, official vendor and regulator guidance, legal analysis, and one independent pricing tracker used for the statistics and claims in this guide:
- Klaviyo Investor Relations, "Klaviyo Delivers Strong Q1 2026 Results (May 5, 2026)": Boston-based Klaviyo (NYSE: KVYO) served over 196,000 paying customers at the end of Q1 2026.
- Klaviyo Help Center, "Getting started with flows": definition of a flow and the list, segment, metric, date property, and price drop trigger types.
- Klaviyo, "2026 SMS Marketing Benchmarks by Industry": SMS flows average a 9.65% click rate vs 5.6% for SMS campaigns, and drive 45.2% of SMS revenue from 7.6% of sends.
- Klaviyo Help Center, "FAQ 7/13 Mobile Messaging Update": from July 13, 2026, SMS moved from credits to dollar-based monthly mobile messaging plans, with per-message prices by channel, region, and number type.
- Klaviyo Help Center, "How Klaviyo billing works": active and billable profile definitions, and longer texts splitting into separately billed message segments.
- Klaviyo, "2026 Email Marketing Benchmarks by Industry": email flows generate nearly 41% of email revenue from 5.3% of sends, a 5.58% flow click rate vs 1.69% for campaigns, and roughly 18x higher revenue per recipient.
- Baymard Institute, "Cart Abandonment Rate Statistics": 70.22% average documented online cart abandonment rate across 50 studies.
- Klaviyo Help Center, "Understanding Klaviyo's predictive analytics": data requirements (500+ customers with orders, 180+ days of order history, recent orders) and the predictions available.
- Google, "Email sender guidelines": SPF, DKIM, and DMARC for 5,000+ daily senders, one-click unsubscribe, and spam rates below 0.10%, never reaching 0.30%.
- Yahoo, "Sender Best Practices (Yahoo Sender Hub)": SPF and DKIM, a DMARC policy of at least p=none, one-click unsubscribe honored within 2 days, and spam rate below 0.3%.
- Klaviyo Help Center, "Understanding US SMS compliance laws": TCPA express written consent, 8 am to 9 pm federal quiet hours, and $500 to $1,500 per-violation penalties.
- Klaviyo Help Center, "Understanding Florida's mini-TCPA": Florida limits marketing texts to 8 am to 8 pm and 3 contact attempts per rolling 24 hours.
- Bryan Cave Leighton Paisner, "The TCPA's New Opt-Out Rules Take Effect on April 11, 2025": FCC rule requiring businesses to honor opt-outs made by any reasonable means within 10 business days.
- Klaviyo Help Center, "Understanding how free and paid plans differ": the free plan covers up to 250 profiles and 500 emails per month.
- Emailtooltester, "Klaviyo Pricing 2026 (updated August 5, 2026)": Email plan tier prices at 500, 1,000, and 10,000 active profiles. Independent tracking, since Klaviyo's pricing calculator does not publish static figures.
Retention insights, no fluff
One short email a month on Klaviyo flows, SMS, and retention programs that pay off.
You're in, check your inbox to confirm.
