Why Email Marketing Is the Highest-ROI Channel for Shopify Stores

For every £1 spent on email marketing, the average ecommerce store earns back £36–£42. No other digital channel — not paid ads, not social media, not SEO — consistently delivers that return. And unlike Meta or Google, you own your email list. Algorithm changes don’t wipe out years of list-building overnight.

Yet most Shopify store owners treat email as an afterthought — sending the occasional newsletter when they remember, with no flows, no segmentation, and no strategy. This guide changes that. We’ll build a complete email marketing foundation from scratch, even if you’ve never sent a single campaign before.

Step 1: Choose the Right Email Platform for Shopify

Shopify Email (the built-in tool) is fine for getting started, but it lacks the automation depth serious stores need. The three platforms worth considering are:

  • Klaviyo — the industry gold standard for Shopify. Deep native integration, powerful flows, predictive analytics, and SMS built-in. Best for stores doing £5k+/month.
  • Omnisend — strong automation, more affordable than Klaviyo, good for stores just scaling up. Includes email, SMS, and push in one tool.
  • Mailchimp — familiar interface but weaker Shopify sync than Klaviyo. Fine for early-stage stores under 1,000 subscribers.

For most growing Shopify stores, Klaviyo is the right choice. Its Shopify integration syncs every order, browse event, and customer property in real time — making hyper-targeted automations possible.

Step 2: Build Your List — The Right Way

A healthy email list grows from multiple capture points, not just a footer form that nobody sees. Set up all of these:

  • Popup with offer — 10–15% discount or free shipping for first-time subscribers. Trigger after 5 seconds or 30% scroll, not immediately on page load.
  • Embedded form — in the footer and on the About page for visitors who scroll past the popup.
  • Checkout opt-in — pre-ticked “Sign up for offers” checkbox at checkout captures buyers who haven’t subscribed yet.
  • Post-purchase landing page — offer something extra (exclusive content, a loyalty tier unlock) in exchange for a confirmed opt-in.
  • Quiz or tool — “Find your perfect [product]” quizzes capture emails at a 30–40% rate, higher than most popups.

Step 3: The 5 Essential Email Flows Every Shopify Store Needs

Flows (also called automations or sequences) are triggered emails that go out automatically based on subscriber behaviour. They run 24/7 without you touching them and typically account for 30–50% of total email revenue.

1. Welcome Flow (5–7 emails)

Sent to new subscribers who haven’t purchased yet. Structure: brand story → social proof → best-sellers → overcome objections → urgency/offer expiry. This single flow often generates 15–25% of all email revenue for newer stores.

2. Abandoned Cart Flow (3 emails)

Sent when someone adds to cart but doesn’t complete checkout. Email 1 at 1 hour (reminder, no discount). Email 2 at 24 hours (add social proof). Email 3 at 48 hours (small incentive if they haven’t purchased). Average recovery rate: 5–15% of abandoned carts.

3. Browse Abandonment Flow (2 emails)

Sent when a subscribed visitor views a product but doesn’t add to cart. Softer than cart abandonment — just a gentle nudge showing what they were looking at plus similar products.

4. Post-Purchase Flow (4–6 emails)

Starts after first purchase. Includes: order confirmation, shipping update, delivery confirmation with usage tips, review request, cross-sell recommendations, and a loyalty/referral invitation. Turns one-time buyers into repeat customers.

5. Win-Back Flow (3 emails)

Sent to subscribers who haven’t opened an email or purchased in 90–180 days. Last attempt to re-engage before suppressing to protect deliverability. Typically includes a “we miss you” message and a time-limited offer.

Step 4: Email Campaign Calendar

Flows handle the automated side. Campaigns are your regular broadcast emails to your full list or segments. A sustainable cadence for most stores:

  • 1–2 emails per week to engaged subscribers (opened in last 90 days)
  • 1 email per week maximum to less-engaged segments
  • Campaign types to rotate: product launches, educational content, customer stories, seasonal promotions, behind-the-scenes, curated collections

Never email your full unengaged list — it tanks your deliverability and trains ISPs to put you in spam.

Step 5: Segmentation Basics

Send the right email to the right person. Start with these four core segments:

  • VIPs — top 10–20% of customers by total spend. Get early access, exclusive offers, and personal touches.
  • One-time buyers — purchased once, haven’t returned. Target with cross-sell and “what to try next” campaigns.
  • Active subscribers, never purchased — still in consideration phase. Use social proof and objection-handling content.
  • Lapsed customers — bought 6+ months ago, haven’t returned. Win-back campaigns or suppression.

Key Metrics to Track

  • Open rate — benchmark 35–45% for flows, 20–35% for campaigns
  • Click rate — 2–5% is solid; under 1% means your content or CTA needs work
  • Revenue per recipient (RPR) — the truest measure of email effectiveness
  • List growth rate — are you adding more subscribers than you’re losing?
  • Deliverability rate — aim for 98%+ inbox placement

Need help building a full email marketing strategy for your Shopify store? Explore our Shopify email marketing services or get in touch with our team for a free audit.

Shopify Experts · OneOnic

Ready to Grow Your Shopify Store?

Our Shopify experts at OneOnic have helped hundreds of brands launch, optimise, and scale.