Klaviyo often looks like the most profitable channel an ecommerce brand has, and it is usually the one the team understands least. The dashboard credits email and SMS with a big share of revenue, the flows were switched on at launch, and campaigns go out because the calendar says so. Nobody can say how much of that revenue the channel actually created.
I do not advise growth. I build it. My Klaviyo work runs inside a wider lifecycle marketing engagement, connected to your acquisition, site and customer data, and it is judged on revenue that would not have happened without it.
How I work on Klaviyo
Start with the data Klaviyo receives
Flows and segments are only as good as the events behind them. I check the store integration and onsite tracking first: Viewed Product, Added to Cart, Started Checkout and Placed Order events, catalog sync, and the customer properties you need for segmentation. Missing or duplicated events are a quiet reason many abandonment flows underperform.
Rebuild the core flows
In most healthy accounts, flows carry a large share of the channel’s results because they reach people when intent is highest. I prioritize by volume and closeness to purchase: checkout abandonment and welcome first, then cart and browse abandonment, post-purchase, replenishment where it applies, win-back and sunset. Each flow gets clear filters, suppression rules so one customer is not in three flows at once, and timing based on your purchase cycle rather than template defaults. I cover each flow in more detail in essential Klaviyo flows for ecommerce.
Segment by behavior and value
I replace whole-list sends with a small set of segments that are easy to maintain: engagement tiers, first-time versus repeat buyers, high-value customers and product or category interest. Where your order history meets Klaviyo’s data requirements, predictive analytics such as predicted lifetime value, expected next order date and churn risk add useful segments on top.
Plan a campaign calendar, not a sending habit
Every campaign should have a reason to go out. I build a calendar that mixes launches, education, social proof and a limited number of offers, sets frequency by engagement tier, and lines up with paid media and site promotions so customers see one consistent story.
Protect deliverability and consent
Inbox placement is earned. I set up a branded sending domain with SPF, DKIM and DMARC, confirm one-click unsubscribe works, watch bounce and complaint rates by mailbox provider, and use a sunset flow to stop mailing people who have stopped engaging. For SMS, consent is collected separately from email, with clear disclosure, quiet hours and sensible frequency limits. My email deliverability checklist covers the full setup.
Measure incremental revenue, not attributed revenue
Klaviyo credits a message with orders placed within a conversion window after someone engages with it, based on your attribution settings. That is useful for comparing flows and misleading as a measure of what the channel adds. Open rates are weaker still, because privacy features in some mail apps, such as Apple Mail Privacy Protection, load messages automatically and register opens that never happened. So I run holdouts: a random share of eligible people receives no message, and we compare revenue per person between the groups.
| Klaviyo reports | What I judge it against |
|---|---|
| Attributed flow revenue | Revenue per person versus a holdout group |
| Open rate | Clicks, orders and inbox placement |
| Campaign revenue | Incremental lift, net of discounts given |
| List size | Engaged profiles and what you pay for them |
As a hypothetical: if the holdout group for a checkout abandonment flow buys at nearly the same rate as recipients, the flow is mostly collecting credit, and the fix is content and timing, not more messages.
When you need a Klaviyo specialist (and when you don’t)
You likely need one when:
- Email and SMS are credited with a big share of revenue, and nobody trusts the number.
- Flows were set up once and never revisited.
- Click rates are sliding, or more mail is landing in spam.
- Your Klaviyo bill is growing faster than your engaged customer base.
- An agency sends campaigns, but nobody owns flow architecture, segmentation or measurement.
You probably don’t need one yet when:
- Traffic and order volume are still low. A simple welcome and abandonment setup is enough while you fix acquisition and conversion.
- The product or offer is still changing every few weeks.
- The site itself converts poorly. Email brings people back to the store; it cannot fix the store.
How it fits the rest of your growth system
Klaviyo sits in the middle of the funnel. Paid media and search bring first visits, the site converts some of them, and email and SMS turn one order into a second and third, which is what makes acquisition costs affordable. I plan these pieces together: sign-up offers matched to the traffic source, retargeting aligned with abandonment flows so customers are not chased by conflicting discounts, and Klaviyo segments synced to ad platforms for exclusions and audience building. Where it saves real time, I add AI-assisted automation for content drafts and reporting, always reviewed by a person before anything sends.
What the first 30 days look like
- Week 1: Access and audit. I review the integration, events, flows, segments, campaign history, deliverability and consent alongside your order data, and map what is working versus what is only being credited.
- Week 2: Fix the foundation. Tracking gaps, authentication, suppression rules, the sunset flow and consent collection are corrected, and I share a prioritized fix list.
- Week 3: Rebuild and launch. The highest-impact flows are rebuilt, holdouts go live on the largest ones, and segments and next month’s campaign calendar are in place.
- Week 4: First review and roadmap. We read early engagement and deliverability results, agree on the next flows and tests, and set expectations for when holdout results will be readable.
Everything is built in your own Klaviyo account and documented, so the system keeps working whether I run it or your team does.
Get it built
If Klaviyo says it drives a large share of your revenue and you want to know how much of that is real, start with a Growth Audit. I will show you what your flows, segments and sending practices actually add, and what to fix first. Get in touch and tell me about your store.