Why Email Marketing Still Beats Social Media for E-Commerce Sales (And How to Set It Up)
Every few months, a new platform promises to revolutionise how e-commerce brands reach their customers. TikTok Shop. Instagram Broadcast Channels. Pinterest ads. Threads. The landscape shifts constantly, and it can feel like the moment you get comfortable with one channel, something new demands your attention.
Meanwhile, email marketing quietly keeps outperforming all of them.
This isn't nostalgia for an older tactic. It's what the data shows, consistently, year after year — and it's what I see in the accounts I manage for Australian e-commerce brands. Email is the channel that drives the most reliable, highest-margin revenue. Not because social media doesn't work, but because email does something social media fundamentally cannot: it puts your message directly in front of someone who has already said they want to hear from you, on a platform you own completely.
If your Shopify store relies primarily on Instagram and Meta Ads to drive sales, this post is for you. Not to abandon social — but to build the channel underneath it that makes everything else work better.
The Numbers: Why Email Marketing Wins on ROI
Let's start with what the data actually says, because the gap between email and social media ROI is larger than most business owners expect.
Email marketing generates an average return of $36 for every $1 spent, according to Litmus's 2024 State of Email report — making it consistently the highest ROI marketing channel available to e-commerce brands. For comparison, the average return on social media advertising sits considerably lower, typically between $2 and $5 per dollar spent depending on the platform and industry.
The reason for this gap comes down to one fundamental difference: permission and intent.
When someone gives you their email address, they are actively saying they want to hear from you. They visited your store, liked what they saw, and opted in. That's a warm audience — people who already know your brand and have expressed interest. When you run a social media ad, you're interrupting someone who may have never heard of you, while they're doing something else entirely.
Email also has a structural advantage that social media doesn't: you own the list. Your Instagram followers can disappear overnight if the algorithm changes, your account gets restricted, or the platform loses popularity. Your email list is yours — permanently, regardless of what any platform decides to do.
For Australian e-commerce brands, this distinction matters enormously. Building an email list is building a business asset. Building a social following is renting one.
Why Most E-Commerce Stores Are Leaving Email Revenue on the Table
Despite these numbers, most small Australian e-commerce stores are dramatically underutilising email. The most common patterns I see when I start working with a new client:
No automated flows in place. The store has a Klaviyo account connected to their Shopify store, but the only emails going out are occasional newsletters when the owner remembers to send one. The high-value automations - abandoned cart, welcome series, post-purchase, win-back - have never been set up.
A welcome email that says "Thanks for subscribing." A welcome email is the highest open-rate email you will ever send. The average open rate for a welcome email is between 50 and 60 percent, compared to 20 to 25 percent for a standard newsletter. Sending a single "thanks for subscribing" email wastes that window entirely.
Newsletters sent inconsistently and without strategy. A newsletter sent once every few months, whenever there's something to announce, doesn't build the kind of relationship that drives repeat purchases. Consistent, value-led email communication — even monthly — compounds into genuine revenue over time.
No segmentation. Sending the same email to every subscriber regardless of what they've purchased, how recently they bought, or where they are in the customer journey is a missed opportunity. Klaviyo's segmentation tools allow you to speak directly to different groups — new subscribers, loyal customers, lapsed buyers — with messages that are relevant to exactly where they are.
No list-building strategy. The email list exists, but no one is actively growing it. No pop-up, no incentive to subscribe, no post-purchase opt-in. A list that isn't growing is slowly becoming less valuable as subscribers disengage over time.
If any of these sound familiar, you are not alone — and every single one is fixable.
The Klaviyo Flows Every Australian E-Commerce Store Needs
Klaviyo is the email and SMS marketing platform built specifically for e-commerce, and it integrates directly with Shopify. It is, in my experience managing accounts for Australian brands, the most powerful tool available for turning email into a consistent revenue channel.
The difference between Klaviyo and a basic email tool like Mailchimp is automation intelligence.
Klaviyo connects directly to your Shopify store data — purchase history, browsing behaviour, cart activity, product viewed — and uses that data to trigger the right email at the right moment automatically.
Here are the flows every Shopify store should have running before anything else.
The Welcome Series (3–5 emails)
Triggered when someone subscribes to your list for the first time. This is your chance to introduce your brand, tell your story, set expectations, and make a compelling first offer. A well-built welcome series — three to five emails sent over the first two weeks — typically drives 30 to 50 percent of total Klaviyo revenue for stores that have it set up correctly. The first email goes out immediately. The second, 48 hours later, tells the brand story. The third offers a gentle incentive — a discount, free shipping, or a hero product recommendation. Done well, a welcome series converts subscribers into first-time buyers before they've forgotten why they signed up.
The Abandoned Cart Flow (2–3 emails) Triggered when someone adds products to their cart but doesn't complete the purchase. This is the single highest-converting automated flow in e-commerce. The average cart abandonment rate across Australian e-commerce is around 70 percent — meaning seven out of ten people who add something to their cart leave without buying. An abandoned cart flow recovers a meaningful percentage of that revenue automatically. The first email goes out one hour after abandonment, reminding them what they left behind. The second, 24 hours later, addresses common objections — shipping cost, sizing, returns policy. The third, 48 to 72 hours later, offers a small incentive if they haven't returned. Stores without this flow are losing recoverable revenue every single day.
The Browse Abandonment Flow (1–2 emails) Similar to abandoned cart, but triggered when someone views a product page without adding it to their cart. Lower intent than cart abandonment, but still valuable — particularly for higher-priced products where the consideration period is longer. A single well-timed email showing the product they viewed, paired with social proof (reviews, bestseller status), nudges a meaningful percentage back to purchase.
The Post-Purchase Flow (3–4 emails) Triggered after someone completes a purchase. The goal here is not to immediately sell again — it's to reinforce the buying decision, deliver a great experience, and build the relationship that leads to repeat purchases. The sequence typically covers: order confirmation with brand warmth (not just a transactional receipt), a shipping update with useful product care or use information, a review request at the right moment (after they've had time to use the product), and a complementary product recommendation based on what they bought.
The Win-Back Flow (2–3 emails) Triggered when a previously active customer hasn't purchased in 90 to 120 days. These are people who already bought from you once — the hardest conversion is already done. A win-back sequence re-engages them with a combination of "we miss you" warmth, a reminder of what's new or popular since their last purchase, and a time-limited incentive to return. Win-back flows consistently deliver some of the highest ROI of any Klaviyo automation because the audience is warm and the cost of reactivation is low.
The Monthly Newsletter: Why Consistency Beats Frequency
Beyond automated flows, a consistent monthly newsletter is the foundation of a healthy email marketing programme.
Not weekly. Not daily. Monthly — done well — is enough for most Australian e-commerce brands to build genuine relationship and drive repeat revenue without burning out their list or their founder.
A monthly e-commerce newsletter should do three things:
Lead with value, not a promotion. The brands whose newsletters people actually read are the ones that give something before they ask for something. A tip, a behind-the-scenes story, a useful guide, new arrivals with context about why they were chosen. The promotion comes after the value — not instead of it.
Feel like it came from a human being. The newsletters that convert best are the ones that have a voice — a real person behind them, not a corporate template. For small Australian e-commerce brands, this is a genuine competitive advantage over bigger retailers. Your story, your team, your values — these are things a large retailer cannot replicate, and email is the channel where they land most powerfully.
Have one clear call to action. Newsletters that link to twelve different products in twelve different directions dilute attention and reduce click-through rates. One primary CTA — shop the new collection, read the full story, claim the offer — consistently outperforms a crowded email trying to do too many things at once.
Building Your Email List: The Foundation Everything Else Depends On
None of the above delivers results without a growing, healthy email list. List-building should be treated as an ongoing, active priority — not a set-and-forget popup that's been sitting unchanged on your Shopify store for two years.
The most effective list-building strategies for Australian e-commerce brands right now:
A well-designed popup with a genuine incentive. Ten percent off, free shipping on a first order, or access to a new collection early. The popup should appear after 30 to 45 seconds on site, or on exit intent — not the moment someone arrives. Klaviyo's built-in signup forms integrate directly with your Shopify store and sync new subscribers automatically.
A post-purchase opt-in. Someone who just bought from you is your warmest possible subscriber. A simple opt-in on the order confirmation page, or a checkbox at checkout, captures people at the highest-intent moment of their customer journey.
Social media list-building. Running a Meta ad campaign specifically designed to drive email sign-ups — rather than direct purchases — builds your list with warm, targeted subscribers at a lower cost per acquisition than most purchase campaigns. This is particularly effective for brands with a longer consideration period or higher average order value.
Referral and giveaway mechanics. Asking existing subscribers to refer a friend, or running a giveaway that requires an email address to enter, can accelerate list growth significantly when done correctly.
How Email and Social Media Work Best Together
This post has made the case for email over social media — but the most effective approach for Australian e-commerce brands isn't choosing one over the other. It's understanding what each channel does best and letting them reinforce each other.
Social media — organic and paid — is your discovery engine. It reaches people who don't know you yet, builds awareness, and drives traffic to your store. Meta Ads are particularly powerful for reaching new audiences and retargeting past visitors.
Email is your conversion and retention engine. It takes the warm audience that social media has built and converts them into buyers — and then into repeat buyers. The combination of Meta Ads driving traffic and Klaviyo converting and retaining that traffic is the foundation of every successful e-commerce marketing system I manage.
Neither works as well without the other. But if you have to choose where to invest your limited time and budget first — the email foundations will deliver more predictable, measurable return.
What a Professional Klaviyo Setup Actually Looks Like
Setting up Klaviyo correctly — with all five flows, a tested welcome series, proper segmentation, and a newsletter template that reflects your brand — typically takes 20 to 30 hours for an experienced specialist. Done properly, it runs largely on autopilot from that point, generating revenue from every new subscriber and every cart that gets abandoned.
The mistake most store owners make is treating email setup as a DIY task they'll get to eventually. It sits on the to-do list for months while recoverable revenue walks out the door every week.
For the e-commerce clients I work with on retainer, Klaviyo setup and monthly email management is one of the highest-returning components of their marketing programme. The flows go live once. The revenue they generate compounds indefinitely.
Ready to Turn Your Email List Into a Revenue Channel?
If your Shopify store has a Klaviyo account that isn't fully set up — or no email marketing at all — you're leaving recoverable revenue on the table every single month.
I'm Delphine, a digital marketing specialist based in Lennox Head, Byron Bay. I set up and manage Klaviyo email marketing for Australian e-commerce brands as part of my monthly Digital Growth retainer packages — alongside Google Ads, Meta Ads, SEO, and content marketing.
If you'd like to talk through what a proper email marketing setup looks like for your store, book a free 30-minute strategy call. We'll look at where you are, what's missing, and what a realistic revenue uplift from email could look like for your specific business.
Or download the pricing guide to see what's included in each retainer tier.
Salty and Co Creative is a boutique digital marketing studio based in Lennox Head, Byron Bay. I help Australian e-commerce brands set up and manage Klaviyo email marketing, Meta Ads, Google Ads, SEO, and monthly marketing retainers that drive consistent, compounding revenue.
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