Shopify Email and SMS Marketing Automation: Complete Guide (2026)

Email and SMS are the two highest-ROI marketing channels available to Shopify merchants — and the gap between stores that automate them effectively and those that don’t is widening. For every $1 spent on email marketing, ecommerce, and retail businesses see an average return of $45, the highest ROI of any industry sector, according to Klaviyo data. SMS generates an average of $71 for every $1 spent, according to Omnisend. Both numbers assume automation is doing the heavy lifting — the right messages triggered by the right events, sent without anyone manually pressing send.

This guide covers what Shopify handles natively, what requires a third-party app, which apps are worth using for email and SMS, and the specific automation workflows that drive the most revenue for Shopify stores.

What Shopify includes natively

Before reaching for a third-party email tool, it helps to know exactly what Shopify already sends automatically — and where the gaps are.

Shopify’s built-in notifications cover the core transactional layer: order confirmations, shipping confirmations, delivery notifications, abandoned checkout emails, refund and cancellation confirmations, password resets, and customer account emails. These trigger automatically based on store events and can be lightly customized via the Notifications settings in your Shopify admin.

For SMS, Shopify’s native support is narrower. The only SMS notifications Shopify sends by default are order confirmations (to customers who provide a phone number), local pickup notifications, gift card issuance, and POS receipts. Everything beyond those four requires a third-party app.

What Shopify does not send natively — and where third-party tools become necessary:

• Shipping update sequences beyond the initial confirmation
• Review request emails
• Win-back and re-engagement emails
• Post-purchase cross-sell and upsell emails
• Birthday and anniversary emails
• Back-in-stock notifications
• Promotional SMS campaigns
• Abandoned cart SMS recovery
• Loyalty and rewards communications

For merchants who want to go beyond transactional notifications without committing to a third-party platform right away, Shopify Messaging is Shopify’s first-party email and SMS marketing app. It handles both email campaigns and SMS from within the Shopify admin, uses Sidekick AI to help create and personalize emails, supports audience segmentation, and tracks channel performance. It’s a meaningfully more capable option than the older Shopify Email app and a reasonable starting point for merchants testing both channels before investing in Klaviyo or Omnisend. Rated 4.7 from over 3,300 reviews on the App Store.

The practical implication: Shopify’s native tools handle “here’s what happened with your order” and basic campaign sending — they don’t handle advanced behavioral segmentation, multi-step automation flows, or the deep cross-app event triggering that drives the highest-ROI automations.

What automated emails should every Shopify store send?

These are the eight automations that collectively cover the full customer lifecycle, from first touch to retention.

Welcome email

A welcome email sent immediately after a customer subscribes or creates an account is one of the most read messages a brand sends. Welcome emails generate more than 8 times as many opens and clicks as standard promotional emails, according to Campaign Monitor data. The purpose is simple: introduce the brand, confirm the relationship, and give the customer a reason to make their first purchase.

Keep it short. Include a discount or incentive if your acquisition strategy uses one. Don’t try to accomplish too much in a single email — the goal is to get them to open the next one.

Cart abandonment email

Around 70% of online shopping carts are abandoned, according to research by the Baymard Institute. A well-timed recovery email — sent 1 to 4 hours after abandonment — is one of the highest-converting automations a Shopify store can run. Abandoned cart emails achieve an average open rate of over 50%, according to Klaviyo’s 2024 benchmarks, and generate an average of $3.65 in revenue per recipient for automated flows. For stores with meaningful cart values, recovering even a fraction of abandoned carts compounds into significant monthly revenue.

The email should include the specific items left in the cart, a clear call to action to complete the purchase, and — if your margin allows — a discount or free shipping offer as an incentive to return.

Order confirmation email

Shopify sends this automatically. The opportunity is to customize it beyond the default — add product care instructions, cross-sell recommendations, expected delivery dates, and a link to your order tracking page. Sixty-four percent of customers consider order confirmation emails essential to the purchase experience, according to SendGrid research. Most merchants leave this email at the Shopify default, missing the highest open-rate touchpoint in their entire email program.

Shipping update email

Shopify sends a shipping confirmation when an order is fulfilled. What it doesn’t send is a sequence of updates as the package moves — out-of-delivery notifications, delivery confirmations, or exception alerts. A third-party tracking app (Tracktor, AfterShip, Wonderment) combined with MESA can trigger each of these milestone emails automatically based on carrier status changes.

MESA templates for shipping updates:

• Email customers when their package status is “In Transit”
• Email notification for delayed packages in transit
• Send email notifications for delayed deliveries

Post-purchase cross-sell email

Sent 5–10 days after delivery, once the customer has had time to experience the product. The goal is to recommend complementary products based on what they bought, or prompt a replenishment order if the product is consumable. Marketing emails sent in response to behavioral triggers — like a post-purchase event — generate 10 times more revenue than broadcast emails, according to Shopify research.

For subscription merchants, this is also the right moment for a subscription conversion email — prompting a one-time buyer to switch to a recurring order for a product they clearly wanted. MESA’s template for this fires automatically after a product purchase and enrolls the customer in a targeted conversion sequence.

MESA templates for post-purchase:

• Send subscription conversion emails after product purchase
• Send an email when a specific product is purchased

Dunning email (subscription merchants only)

For stores running subscriptions via Recharge or another subscription app, a failed payment triggers the dunning sequence: automated retry attempts layered with customer-facing emails that prompt the subscriber to update their payment method. MESA can extend this with Slack alerts to your team for high-value subscribers and custom email sequences that go beyond what the subscription app’s built-in dunning covers. See the Complete Guide to Shopify Subscriptions for dunning setup details.

Customer rewards email

Triggered by loyalty milestone events — a points threshold reached, a tier upgrade, or an anniversary. These emails perform well precisely because they’re sent to customers who are already engaged. A loyalty email saying “you’ve earned a $15 reward” goes to your best customers and arrives at a moment of genuine positive signal.

Review request email

Sent 7–14 days after confirmed delivery. The timing depends on your product type — consumables need time for the customer to experience the product, while apparel can be reviewed more quickly. Yotpo, Okendo, and Stamped all have built-in review request automation. MESA can also trigger a custom review request workflow based on delivery confirmation rather than relying on estimated delivery dates.

The review lifecycle doesn’t end at the request. Following up with customers after they leave a review — a thank-you for a positive one, proactive outreach for a negative one — closes the feedback loop and turns reviews into a retention tool.

MESA templates for reviews:

• Send a thank you email for Yotpo reviews
• Email customers after receiving a negative review on Stamped.io

The essential SMS automations for Shopify stores

SMS is a separate channel with its own rules. The open rate for SMS messages is approximately 98%, and 90% of texts are read within three minutes of delivery, according to research from Forbes and Validity cited by Infobip. That immediacy is the channel’s primary advantage — and the reason it should be used for time-sensitive communications rather than general broadcasting.

The compliance requirements are also more stringent than email. Every SMS subscriber must explicitly opt in. Sending to customers who haven’t opted in isn’t just bad practice — it violates US TCPA regulations and risks account suspension on any major SMS platform.

Abandoned cart SMS

Sent 15–30 minutes after cart abandonment — before the email goes out. The immediacy of SMS means recovery happens faster than email, and the two channels work well in sequence: SMS first for instant reach, email follow-up for customers who don’t respond.

Order confirmation SMS

Shopify sends this natively but in a limited, non-customizable format. Third-party SMS apps let you send a branded confirmation with an order summary, an estimated delivery date, and a tracking link — significantly more useful than the default.

Delivery notification SMS

The highest-engagement moment in the post-purchase journey. An SMS at the moment of delivery — “Your order from [brand] has arrived!” — achieves extremely high engagement and is a natural moment to include a review request link or a replenishment offer.

Flash sale and promotional SMS

SMS is most effective for time-limited offers where immediacy drives action. A “24-hour sale starts now” SMS reaches customers in minutes, unlike email, which cannot reliably replicate that. Keep these infrequent — no more than one to two per week — and highly relevant to the subscriber. 61% of consumers say they unsubscribe from SMS due to message frequency, according to Klaviyo and Recharge research.

Back-in-stock SMS

For popular products that sell out, an SMS back-in-stock notification converts at a significantly higher rate than the equivalent email, because customers who opted in specifically for this notification are high-intent by definition. Run both channels together — SMS for instant reach, email for customers who provide only an email address. MESA’s waitlist notification template handles the email side of this automatically.

MESA template:

• Notify waitlisted customers when a product becomes available

The best Shopify email and SMS marketing apps

Klaviyo

Klaviyo is the most widely used email and SMS marketing platform in the Shopify ecosystem and the default recommendation for merchants who want a single platform handling both channels. Its Shopify integration is deep — Klaviyo can trigger automations on virtually any Shopify event, pull order history, product data, and customer tags into messages, and segment customers with granular behavioral filters.

For email, Klaviyo’s flow builder handles the full automation stack: welcome series, abandoned cart, post-purchase, win-back, browse abandonment. For SMS, Klaviyo offers opt-in collection at checkout, keyword automation, and direct integration with its email flows so that email and SMS can be coordinated in a single sequence.

MESA connects to Klaviyo natively, enabling workflow triggers that push customer and order data into Klaviyo lists and events — for example, automatically adding a customer to a Klaviyo back-in-stock list when they’re tagged with backorder in Shopify, or firing a Klaviyo event when an order is placed to segment buyers of customized products.

MESA templates for Klaviyo:

• Add customer with backorder tag to Klaviyo list
• Update Klaviyo lists when first-time customer orders are placed
• Send Klaviyo message when Shopify order is delivered

Best for: merchants who want a unified email and SMS platform with the deepest Shopify integration available.

Omnisend

Omnisend is a strong alternative to Klaviyo built specifically for ecommerce, with email, SMS, and push notifications in a single platform. Its automation workflow builder is more visual and approachable than Klaviyo’s, making it easier for merchants without a dedicated email marketing team. Omnisend also offers more competitive pricing at lower list sizes, making it a particularly good fit for stores in the $500K–$5M revenue range.

Omnisend’s own data shows that US merchants using the platform see an average email marketing ROI of $76 per dollar spent — roughly double the industry average — largely attributable to their automation-first workflow that pushes new merchants toward high-ROI flows immediately.

Best for: merchants who want email, SMS, and push in a single tool at a lower price point than Klaviyo, with a faster setup path.

Postscript

Postscript is an SMS-only platform built specifically for Shopify, making it the strongest choice for merchants who want to go deep on SMS rather than treating it as a secondary channel in a broader email platform. It integrates directly with Shopify’s checkout for opt-in collection, has strong segmentation based on Shopify customer data, and offers two-way conversational SMS for customer service and sales interactions.

MESA connects to Postscript for SMS delivery within automation workflows — for example, sending a delivery confirmation SMS via Postscript when Wonderment detects a delivered package, or triggering an SMS to a customer when a custom workflow condition is met.

Best for: merchants who want SMS as a primary revenue channel and need deeper segmentation and two-way messaging than Klaviyo’s SMS offering provides.

Twilio

Twilio is the underlying infrastructure powering many SMS platforms. For merchants with development resources who want maximum control over message routing, carrier selection, and pricing at scale, Twilio’s direct API integration via MESA allows custom SMS workflows that no purpose-built marketing app can replicate.

Best for: technical merchants or agencies building custom notification infrastructure who need flexibility beyond what marketing-oriented SMS platforms offer.

Shopify Messaging

Shopify Messaging is Shopify’s own first-party email and SMS marketing app — a combined replacement for the older standalone Shopify Email app. It handles email campaigns, SMS campaigns, and basic automation flows entirely within the Shopify admin, using Sidekick AI to help create and personalize email content. Pricing is usage-based and scales with send volume rather than list size, making it cost-effective early on.

Its automation capabilities are meaningfully narrower than Klaviyo or Omnisend — segmentation options are less granular, and multi-step behavioral flows require workarounds. But for merchants who want a native starting point with zero integration overhead and both email and SMS in one place, Shopify Messaging covers the fundamentals cleanly.

Best for: merchants just launching email and SMS marketing who want a single native tool before committing to a dedicated platform. Merchants who outgrow it typically migrate to Klaviyo or Omnisend.

Before connecting any of the platforms above, it’s worth knowing what MESA handles natively — because the Email and SMS tools built into every MESA plan cover the transactional and event-triggered messaging layer without requiring a separate platform.

MESA’s built-in Email and SMS tools

MESA includes native Email and SMS tools with every plan — no additional apps to install, no separate per-send fees, no third-party accounts required. These tools power transactional and event-triggered messages directly from your workflows: order confirmations, shipping notifications, abandoned cart reminders, delivery alerts, internal team alerts, high-risk order flags, and subscription payment failure notifications.

The Email tool supports branded sends with variables and works with any workflow trigger. The SMS tool reaches customers on their phones with the same flexibility. For merchants who need operational messaging covered cleanly within their automation stack without adding platform overhead, these tools handle it natively.

For marketing-grade campaigns — list management, broadcast sends, behavioral segmentation across large subscriber bases — Klaviyo, Omnisend, or Postscript is the right addition. MESA’s native tools and third-party platforms work alongside each other: MESA handles the trigger and event logic, and the marketing platform handles the campaign layer.

How MESA connects your marketing stack

Email and SMS platforms handle the sending layer. MESA handles the event and data layer — what triggers a message, which customer data gets passed into it, and what else happens at the same moment across your other apps.

The workflows that matter most:

Trigger an email or SMS on any Shopify event. Klaviyo and Omnisend can detect order events natively. But events that originate outside Shopify — a subscription cancellation in Recharge, a delivery exception in Tracktor, a negative review in Yotpo, a form submission — require MESA to detect the event and push it into your email platform as a trigger.

Add a free product to a first order, then enroll the customer in a sequence. MESA detects the first-order condition, adds the free product, then fires a Klaviyo event that enrolls the customer in a post-purchase welcome sequence tailored to first-time buyers.

Save customer birthdays and trigger birthday emails. MESA’s Forms tool collects birthday data on the customer profile page. A scheduled workflow checks upcoming birthdays daily and fires a Klaviyo event to trigger a birthday discount email at the right moment.

Schedule theme changes for campaign launches. MESA can swap your Shopify storefront theme on a specific date and time — coordinating your email campaign launch with a matching on-site experience without any manual deployment.

Send a postcard after order creation. Pair MESA with Postco or PostPilot to send a physical postcard 10 days after order creation as a post-purchase touchpoint that email and SMS can’t replicate.

MESA templates for marketing workflows:

• Schedule Shopify theme change on a specific date
• Add a free product to a new customer’s first order
• Add free product to orders over $100
• Save a customer’s birthday to Shopify notes
• Send a postcard after an order is created
• Notify waitlisted customers when a product becomes available
• Create unique discount codes for new Shopify customers
• Send subscription conversion emails after product purchase
• Send a thank you email for Yotpo reviews
• Email customers after receiving a negative review on Stamped.io
• Approve thank-you emails before sending to customers

Email vs. SMS: how to think about using both

Email and SMS are not competitors — they’re complementary channels with distinct strengths that should be used in sequence.

Email is the right channel for: rich content, product storytelling, newsletters, longer post-purchase sequences, review requests, loyalty updates, and any message where formatting and visual design add value. Email’s average revenue per recipient for automated flows is $1.94, rising to $3.65 for abandoned cart flows, according to Klaviyo data.

SMS is the right channel for: time-sensitive messages where immediacy matters, high-intent triggers (abandoned carts, back-in-stock), delivery notifications, flash sales, and two-way conversational exchanges. SMS generates higher revenue per recipient than email on a per-message basis, but list sizes are typically smaller because opt-in rates are lower and compliance requirements are stricter.

The most effective programs use both in coordinated sequences: an abandoned cart SMS fires first for immediate recovery, followed by an email 2–4 hours later for customers who didn’t convert. A back-in-stock SMS and email go out simultaneously to maximize reach. A post-purchase sequence uses email for product content and SMS for delivery notifications.

The important constraint: SMS subscribers are more sensitive to frequency. Sending more than 1 or 2 promotional SMS messages per week increases opt-outs. Email subscribers tolerate higher frequency, especially for stores with a strong editorial voice or genuinely useful content.

Frequently asked questions

Next steps

The highest-ROI starting point for most Shopify stores is the abandoned cart flow, followed by the post-purchase sequence. Both are high-intent moments where the right automated message converts measurably better than no message at all.