Paid ads buy the first order. Retention decides whether the business works. The brands that scale profitably, including clients we have taken from $0 to $300K/month, treat email and SMS as an owned revenue engine with its own architecture, its own testing program, and its own targets, not as a newsletter someone sends when there’s a sale. That’s where we come in.
What role does email marketing REALLY play in eCommerce?
Here is the number we manage to across our portfolio: a healthy DTC brand runs email plus SMS at 20 to 30 percent of total revenue on any given day, with subscription and consumable brands at 25 to 35 and the best programs pushing past 40.
If your platform credits email with low single digits, one of two things is true: the program is broken or the tracking is, and both are expensive, because a brand that believes email drives 3 percent will underinvest until the number becomes self-fulfilling. The economics are blunt.
Acquiring a customer through paid media costs real dollars every single time. Email and SMS are how you stop paying rent on your own customers: they convert hesitant first-time shoppers, drive the second and third order that create actual profit, and protect your margin from the rising cost of paid traffic.
Every account we take on starts with a forensic audit, real flows, real sends, real subscriber journeys traced profile by profile, and week one always includes reconciling platform-attributed revenue against store order data, so every decision after that runs on numbers we trust.
1. Grow Your Email List.
List growth is an offer problem before it is a tooling problem. We design and test the popup offer itself, and the results are rarely what brands assume: in our testing, a free gift regularly beats free shipping, and the incentive that converts is category-specific, so we test rather than guess. We collect email and SMS consent separately and clearly, because they are legally and behaviorally different channels.
Beyond the popup, we build list growth into moments shoppers already want: back-in-stock requests, giveaways and sweepstakes run on your own landing pages rather than through middleman tools, and quarterly campaigns engineered so the first email earns a click, which matters more than most brands realize, because a clicked first email is the strongest deliverability signal a new subscriber can send.
Growth without engagement is just a bigger Klaviyo bill, so every acquisition source is judged on the revenue its subscribers produce, not the count it adds.
2. Email Automation
Flows are where email earns while you sleep, and in a healthy account they drive 25 to 40 percent of total email revenue. We build in Klaviyo, and we build architecture, not a checklist: three clusters, pre-purchase, post-purchase, and lifecycle, sitting on a suppression spine every message honors.
Nearly every account we audit already has the standard flows. What it lacks is the exits and filters between them, so a subscriber who buys on the first welcome email still gets the rest of the welcome series, the cart emails, and the checkout sequence, eight or nine messages that turn a new customer into an unsubscribe.
- Welcome Email Series.
Front-loaded, because new-subscriber interest decays rapidly after 72 hours. First email lands near-instantly and should open at 45 to 55 percent; the series length and incentive ladder are set by your AOV and margin, typically 3 to 5 emails.
- Cart, Checkout and Browse Abandonment Flows.
Timing in minutes, not hours: we run first-message delays of 20 to 60 minutes and split-test tighter. Reassurance before discounts, escalating codes late in the sequence, re-entry blocked for about 14 days, and cross-flow suppression so checkout silences cart and cart silences browse.
- Post-Purchase Flows.
Typically 4 to 6 emails, doubling as the account’s most important exit signal: a purchase immediately pulls the customer out of every pre-purchase sequence, and tiered suppression keeps promotions away while the order is in transit. This is where repeat rate, reviews, and second-order revenue are built without a dollar of paid acquisition.
Every flow is then judged on revenue per recipient, above roughly 50 cents it is a producer, under 5 cents it is silent and gets rebuilt, because the most common finding in accounts we take over is that the best flow is broken, colliding with another, or turned off entirely.
3. Build Email Content Calendar.
We plan 6 to 8 weeks ahead: promotional calendar first, then new arrivals, restocks, and nurture content, with sitewide discounts reserved for the few moments they belong (Black Friday, Cyber Monday, and select holidays) so your brand doesn’t train customers to wait for coupons.
Two disciplines separate our calendars from the usual agency batch-and-blast.
First, testing is a quota, not an accident: at least 30 percent of campaigns carry a live A/B test, subject lines, hero styles, offer framing, so by peak season you enter Black Friday with a proven playbook instead of hunches.
Second, cadence has to prove its worth. Raising send volume is the knee-jerk reaction to soft revenue, and spray-and-pray blasts to the full list bleed subscribers and drag on deliverability.
We scale frequency segment by segment, use structured resends that exclude anyone already in an active flow, and we will cut a send to protect list health, because balancing this week’s revenue against the long-term asset is the actual job.
4. Audience Segmentation
We tier every list from T1 (most engaged) through T4 (least engaged) and treat those tiers as sending rules, not labels: your best subscribers can hear from you often, cold tiers earn their way back in. This is what keeps opens high, revenue concentrated, and your emails landing in inboxes, NOT spam folders. The unglamorous edge of segmentation is where the money hides.
Our sunset discipline runs as a hard rule: a final warming sequence, roughly five emails over two weeks, and profiles with no opens or clicks are suppressed. Unengaged profiles damage how mailbox providers treat everyone else’s sends and inflate your Klaviyo bill while producing nothing.
One timing rule we never break: no purges right before peak season. Warm the cold tiers first, force a click where you can, keep whoever responds, then sunset the silent.
5. Master Email Designs
Design is tested, not decreed. We have tested thousands of layouts and photography styles across our portfolio, and the findings routinely contradict taste: model-led heroes beat product-only heroes on some accounts and lose on others, pricing color changes move click-through, and a text-only resend often out-converts the designed original with non-openers.
So every account gets design conventions built from its own test results: clear hierarchy, one dominant CTA, mobile-first composition, and accessibility that survives dark mode and image-blocking. The template library we build for you is a living system, refreshed as tests settle, so your email design compounds the same way your creative testing does.
6. Subject Lines & Preview Text
The subject line is the gatekeeper for everything else: an email that doesn’t get opened doesn’t get to be beautiful or persuasive. We treat opens as a testing discipline inside the 30 percent campaign-testing quota, pairing subject line and preview text as one unit, and we read results against flow-level benchmarks we hold across accounts, welcome emails opening at 45 to 55 percent, abandonment first-touches at 40 to 50, winbacks realistically in the 25 to 35 band.
When opens sag account-wide, the subject line is usually the symptom, not the disease: we check deliverability, sender reputation, and list hygiene before rewriting a headline, because no copywriting fixes an email that lands in the promotions graveyard.
7. SMS Marketing
Our rule on SMS: respect it the way you respect email. It is a program with journeys, segments, and testing, not a coupon cannon. Because texts land on a personal device, restraint is the strategy, unengaged subscribers get at most one SMS a week, with volume concentrated on engaged tiers and genuinely time-sensitive moments: sale windows, back-in-stock, delivery updates, and the short nudge inside abandonment flows where a text closes what an inbox message cannot.
Done right, SMS is not email’s little brother; on accounts with personalized journeys against high-intent segments we have watched SMS out-earn email campaigns outright. On platform: email belongs in Klaviyo, and on the SMS side we have consistently seen dedicated platforms like Attentive and Postscript outperform Klaviyo’s native SMS in tooling, list growth, and revenue per subscriber. That said, a migration is a conclusion your data should reach, never a premise, and if your data says stay, we’ll tell you to stay.
Frequently Asked Questions
How much revenue should email and SMS drive for an ecommerce brand?
A healthy DTC brand runs email plus SMS at 20 to 30 percent of total revenue, with subscription and consumable brands at 25 to 35 and top programs pushing past 40. Low single digits means the program or the tracking is broken, and both are worth fixing quickly.
Which Klaviyo flows matter most?
Welcome and abandoned checkout convert hardest and get built first, followed by browse abandonment, post-purchase, winback, back-in-stock, and sunset. The bigger differentiator is the suppression architecture between them, so converted buyers exit pre-purchase sequences instantly and no subscriber gets buried by colliding flows.
Do you handle SMS as well as email?
Yes, as one coordinated program on a shared suppression layer, so a shopper who acts on one channel stops hearing about it on the other. We run email in Klaviyo and, where the data supports it, SMS on dedicated platforms like Attentive or Postscript.
What does your email audit look like?
Forensic. We pull your real flow and campaign data, trace actual subscriber journeys profile by profile, benchmark every flow on revenue per recipient, and reconcile platform-attributed revenue against store orders. You see exactly what is broken, what it costs, and the 90-day build that fixes it.