Klaviyo flows do most of the heavy lifting on a healthy ecommerce email program. Campaigns get the attention — promotions, BFCM blasts, product launches — but the flows are what compound. They run while the team is in a planning meeting. They run on a Sunday morning. They run when a customer hasn't opened anything in 90 days and is one well-timed message away from churning permanently.
This post walks through the five Klaviyo flows that produce the bulk of automated revenue for the ecommerce brands running through our Klaviyo email marketing practice — plus the segmentation, send-time, and deliverability discipline that keeps them landing.
Which Klaviyo flows actually drive revenue?
Five, in order of typical revenue contribution:
- Abandoned Checkout flow. Customer started checkout, didn't complete. Highest intent, highest recovery rate.
- Browse Abandonment / Abandoned Cart flow. Customer engaged with a product but didn't reach checkout. Lower intent than abandoned checkout, broader reach.
- Welcome Series. New subscribers (typically from a popup or sign-up incentive). Sets the tone for everything that follows.
- Post-Purchase flow. Confirms the order, reduces support load, and seeds the next purchase or a review request.
- Winback flow. Lapsed customers who haven't purchased in a defined window. Cheapest revenue you'll generate all year — assuming you can still reach them.
The numbers vary by category, but the relative ranking holds across most accounts.
How should I structure an Abandoned Checkout flow?
The shape that works:
- Email 1 — 60 to 90 minutes after abandonment. Reminder, not pressure. Include the product, the cart price, and a clear continue-checkout CTA.
- Email 2 — 24 hours later. Address the most common objection. For most ecommerce categories that's shipping cost or return policy. Don't lead with a discount yet.
- Email 3 — 72 hours later. Now you can deploy a discount, if your margin tolerates it. Keep it modest — 10% for first-time, 5% for repeat. A discount in email 1 trains customers to abandon.
Segmentation conditions to add:
- Skip the flow for customers with a recent order in the last 7 days (avoid double-discounting).
- Skip the flow for VIP-tier customers who are about to receive a different message anyway.
- Don't send the discount email to anyone who has ever bought at full price in the last 30 days unless their cart value exceeds a margin threshold you've set.
For Shopify and BigCommerce accounts, the Klaviyo native integration handles the trigger events. For headless stack accounts, audit the event payload before you trust the flow to fire — events fire reliably, but data quality varies.
What does a good Welcome Series look like?
Three to five emails over 10–14 days. The shape:
- Email 1 (immediately after signup). Deliver the incentive (discount code, free shipping, the gated content piece they signed up for). One CTA. No upsells.
- Email 2 (day 2). Brand story — what makes the brand the brand. Not the founder's biography. The thing that differentiates the product or the company.
- Email 3 (day 5). Best-sellers or category gateway. Make it easy to find what to buy first.
- Email 4 (day 9). Social proof. Reviews, UGC, press. Address the trust gap a new subscriber feels before their first purchase.
- Email 5 (day 14). Final discount reminder if they haven't redeemed, or a soft transition into the regular campaign list.
For accounts running broader ecommerce email marketing programs, the Welcome Series is the single most consequential flow to get right. It sets engagement expectations that compound for the entire lifecycle.
How aggressive should the Winback flow be?
Less aggressive than you think.
The mistake we see most often: brands set a 60-day winback trigger, blast their lapsed audience three times in a week, and watch their list-health metrics deteriorate. Lapsed subscribers who don't engage with winback emails are the single biggest pool of future spam complaints and inactive-but-deliverable bloat. Don't make it worse.
The pattern that works:
- Trigger at 90 days post-purchase (or 90 days post-last-engagement for non-purchaser subscribers).
- Email 1. Personal-voice "we miss you" with a single-purchase incentive. Keep the tone restrained.
- Email 2 — 7 days later. Surface what's new since they last bought. New products, new collections, anything genuinely worth their attention.
- Email 3 — 14 days later. Final touch with the strongest incentive you're willing to offer. After this email, if they haven't engaged, sunset them.
The sunset step is non-negotiable. Continuing to send to fully-inactive recipients tanks your sender reputation and your inbox placement for the active list. Klaviyo's segment builder makes this easy — exclude profiles with zero opens/clicks in the last 180 days from your campaign sends.
What about segmentation beyond the flows?
Flows are 80% of the automation revenue, but the campaign list still matters — and it only works if it's properly segmented.
The minimum segmentation we set up on every account:
- Engaged subscribers (opened or clicked in the last 30/60/90 days) — your primary campaign audience.
- VIP cohort (top 10% by lifetime value) — receives different creative, often earlier access, sometimes different offer logic.
- First-time vs repeat buyers — different lifecycle messaging entirely.
- Category affinity segments for multi-category catalogs — built from past purchase data and on-site behavior.
Klaviyo's Predictive Analytics — expected next order date, predicted CLV, churn risk — adds another layer on top of these. We treat the predictive segments as inputs to flow logic, not as standalone audiences. They're hints, not destinations.
How do I make sure these emails actually land in the inbox?
Deliverability is its own discipline. The minimum hygiene checklist:
- Authenticate. SPF, DKIM, and DMARC are required, not optional. Klaviyo's sending domain setup walks you through SPF and DKIM. DMARC you set yourself.
- One-click unsubscribe. Implement RFC 8058 one-click unsubscribe headers. Gmail and Yahoo have required this since 2024 for bulk senders; without it your inbox placement degrades.
- BIMI. Brand Indicators for Message Identification is optional but increasingly worth the effort — your logo appears next to the sender name in Gmail and Apple Mail, lifting recognition and open rate.
- List hygiene. Sunset inactives quarterly. Don't import old purchased lists. Don't reactivate sunsetted profiles without an explicit re-opt-in.
- Engagement-based sending. Don't send every campaign to your full list. Engaged-only sends on weak performers protect deliverability for the strong ones.
How does this stack interact with paid media?
The Klaviyo lists feed directly into your paid media targeting. Customer Match in Google Ads, Matched Audiences in LinkedIn, and Custom Audiences in Facebook advertising all accept Klaviyo segment exports. The flow:
- Engaged subscribers → exclusion audience in prospecting campaigns (don't pay to acquire someone already in the funnel).
- VIP cohort → seed audience for lookalikes (Meta) or value-based bidding signal (Google).
- Lapsed-but-not-sunsetted cohort → retargeting audience for paid winback (Meta + Google Display).
The integration isn't automatic — it requires the Klaviyo audience sync to be turned on for each destination. Worth the setup time.
Key takeaways
- Five flows do the bulk of automated email revenue: Abandoned Checkout, Browse/Abandoned Cart, Welcome, Post-Purchase, Winback.
- Abandoned Checkout works best with a 3-email cadence and a discount only at the end.
- Welcome Series in 3–5 emails over 10–14 days sets the engagement tone for the entire lifecycle.
- Winback flow needs an explicit sunset step. Inactive deliverable profiles are the biggest threat to your sender reputation.
- Deliverability is required, not optional: SPF, DKIM, DMARC, RFC 8058 one-click unsubscribe. BIMI if you can.
- Klaviyo segments feed paid media exclusion and seed audiences. Don't leave that integration off.
Want a Klaviyo audit?
Most accounts we audit have the flows turned on. Most have one or two doing real work and the rest fundamentally misconfigured. If you want an outside look from the 1Digital® Klaviyo email marketing team, tell us about your account and we'll walk through the flows and the segmentation on a free call.