Klaviyo Email
Marketing Agency
for Shopify Brands

We build the Klaviyo layer of your Shopify store: migration, flows, segmentation, and clean event data. Implementation and engineering — not campaign copywriting.

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Why Klaviyo

Own Your Shopify Customer Data With Klaviyo

Mgroup is a Klaviyo email marketing agency for Shopify and Shopify Plus brands, and Klaviyo is the retention layer most of them under-use. Flows sit half-built, segments go stale, and the Shopify integration leaks events nobody notices. We fix the engineering underneath — so the revenue you already earned actually gets recovered.

Customer paying online by card — Klaviyo email marketing for Shopify
01 — What we build

What a Klaviyo Email Marketing Agency Builds on Shopify

We connect Klaviyo to Shopify properly: catalogue sync, checkout and cart events, Shopify Forms and on-site sign-up capture, custom properties from your theme, and server-side tracking where the browser drops data. Then we build the flows that actually carry revenue — welcome, abandoned cart, browse abandonment, back-in-stock, post-purchase, and win-back — with segmentation that reflects how your customers really buy.

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Laptop showing ecommerce analytics — Klaviyo flow reporting
02 — Data, deliverability, reporting

Klaviyo Migration, Deliverability and Attribution

Moving from Mailchimp, Omnisend or dotdigital? A Klaviyo migration keeps profiles, consent state, segments and flow history intact — no re-permissioning your list by accident. We warm domains, set SPF, DKIM and DMARC, prune unengaged profiles, and wire revenue attribution so you can see what each flow earns instead of guessing.

Talk to a Klaviyo engineer
Klaviyo stack we build with

The Klaviyo toolkit behind every Mgroup build

The data objects, integrations and deliverability standards we use to make Klaviyo work on Shopify and Shopify Plus stores.

Talk to a Klaviyo engineer

Shopify integration

The native Klaviyo–Shopify connector plus the gaps it leaves. We verify catalogue sync, checkout events, and multi-store setups so profiles and orders line up.

Flows

Automated sequences triggered by behaviour — cart abandonment, browse abandonment, back-in-stock, post-purchase, win-back. Built once, tuned with real data.

Segmentation

Live audiences built on purchase history, engagement, predicted CLV, zero-party data and custom properties. Segments update themselves; static lists rot.

Klaviyo CDP

Unified customer profiles with events from Shopify, your theme, and third-party apps. One record per shopper instead of five partial ones.

Deliverability

SPF, DKIM and DMARC alignment, dedicated or shared sending decisions, domain warming, and sunset policies that keep you out of the promotions graveyard.

Revenue attribution

Per-flow and per-segment revenue reporting tied to Shopify orders, so email ROI is a number you can audit rather than a claim.

What we ship

What Mgroup ships as your Klaviyo email marketing agency

Six production-grade Klaviyo capabilities — from Shopify integration and flow architecture to migration, deliverability and reporting. Each one is shipped, measured, and tied to recovered revenue.

See our Shopify work

Klaviyo audit & data health

Integration, event coverage, flow inventory, segment hygiene and deliverability review. You get a prioritized fix list, not a PDF of screenshots.

Flow architecture

Welcome, abandoned cart, browse abandonment, back-in-stock, post-purchase, replenishment and win-back — mapped to your catalogue and purchase cycle.

Klaviyo migration from any platform

Mailchimp, Omnisend, dotdigital or Shopify Email — profiles, consent state, segments and history move across without resetting your sending reputation.

  • Profile mapping →
  • Consent state →
  • Segment rebuild →
  • Domain warming →

Segmentation & CDP setup

Predicted CLV, purchase-cycle and engagement segments built on live Shopify data, plus custom properties pushed from your theme.

  • CLV segments →
  • Engagement tiers →
  • Custom properties →
  • Suppression rules →

Email & SMS template build

Responsive, brand-accurate Klaviyo templates coded to render in Outlook and Gmail alike, with reusable blocks your team can edit safely.

Deliverability & reporting

Authentication, list hygiene, sunset flows, and a reporting layer that attributes revenue per flow and per segment against Shopify orders.

Get a Klaviyo quote

No-commitment scoping call · response within 1 business day

Klaviyo engineers vs generalists

Mgroup Klaviyo build vs a generalist email agency

How a Shopify-native Klaviyo email marketing agency compares to a generalist email agency or an in-house team learning the platform on your list.

CriterionWith MgroupGeneralist / in-house
Platform focusShopify & Shopify Plus exclusive since 2016Every platform, shallow Shopify depth
Integration depthEvent coverage verified end to endNative connector installed, never checked
Flow coverage7+ revenue flows mapped to your catalogueWelcome and cart, then it stops
SegmentationLive segments on CLV and purchase cycleStatic lists that go stale in a month
Migration safetyConsent state and history preservedList re-imported, reputation reset
DeliverabilitySPF / DKIM / DMARC + domain warmingSend and hope it lands
ReportingRevenue per flow, reconciled to ShopifyOpen rate screenshots
Theme-level dataCustom properties pushed from LiquidWhatever the app happens to send
Direct engineer contactSenior developer on Slack · same hourAccount manager and a ticket queue
ScopeImplementation, migration, engineeringCampaign calendar, little engineering
Dev capacityTheme dev and Klaviyo under one teamRecommendations with no hand to ship them
Best forShopify brands whose Klaviyo underperformsBrands wanting a campaign calendar only

Ready to make Klaviyo pay for itself?

Get a free 30-min Klaviyo audit — we will show you which flows and events are leaking revenue today.

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Our Klaviyo process

A structured Klaviyo implementation program

As a Klaviyo email marketing agency we treat it as a data project: Klaviyo is not a plug-in-and-pray install. It is a data project first, a flow project second — six steps from audit to reporting.

Audit & Data Health

Integration check, event coverage, flow inventory, segment hygiene and deliverability baseline across your Shopify store.

Events Deliverability

Data & Integration

Catalogue sync, checkout and cart events, custom properties from Liquid, and server-side tracking where the browser drops data.

Shopify sync Custom props

Flow Architecture

Welcome, abandoned cart, browse abandonment, back-in-stock, post-purchase, replenishment and win-back mapped to your purchase cycle.

Flows Triggers

Segmentation

Live segments on purchase history, engagement and predicted CLV, with suppression and sunset rules that protect your sender reputation.

CLV Suppression

Build & QA

Templates coded and tested across Gmail, Outlook and mobile; flows QA-ed with seed profiles before a single customer receives them.

Templates QA

Reporting & Handover

Revenue attributed per flow and segment, reconciled against Shopify orders, plus documentation your team can run without us.

Attribution Docs
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Pricing

Klaviyo implementation cost & engagement

Three transparent engagement models for Klaviyo work on Shopify. Fixed scope, fixed price — you know the number before we start.

Klaviyo Audit

One-time integration, flow and deliverability audit.

$2,500/ from

2–3 weeks

Book an audit
  • Shopify integration & event review
  • Flow inventory & gap analysis
  • Segment & list hygiene check
  • Deliverability & authentication audit
  • Prioritized remediation roadmap

Implementation

Full Klaviyo build or migration for one Shopify store.

$9,000/ from

4–8 weeks

Start implementation
  • Everything in Klaviyo Audit
  • 7+ revenue flows built & QA-ed
  • Segmentation & CDP setup
  • Platform migration with consent intact
  • Responsive template system
  • Revenue attribution reporting

Retained engineering

Ongoing Klaviyo and lifecycle engineering capacity.

$3,500/ month

Rolling, cancel with 30 days

Talk to a Klaviyo lead
  • Flow iteration & new triggers
  • Segment and suppression upkeep
  • Deliverability monitoring
  • Template & module additions
  • Monthly attribution reporting
  • Dedicated senior engineer

Need a fixed-scope proposal? Share your Klaviyo setup and we will scope it in writing.

Industries

Klaviyo programs we build, by industry

Every Shopify vertical has its own purchase cycle, replenishment window and consent profile — the flows and segments change accordingly.

Fashion & Apparel

Size and fit properties on profiles, back-in-stock by variant, seasonal win-back, and browse abandonment tuned to long consideration cycles.

Beauty & Cosmetics

Replenishment flows on real consumption windows, shade and routine properties, and post-purchase education that lifts second orders.

Food & Beverage

Short replenishment cycles, gifting segments, subscription reminders, and freshness-aware send timing.

Subscription Brands

Churn-risk segments, skip and swap prompts, failed-payment recovery, and lifecycle flows wired to Recharge or Shopify subscriptions.

Health & Supplements

Compliance-aware content blocks, dosage-based replenishment timing, and consent handling that stands up to scrutiny.

B2B & Wholesale

Account-level segmentation, reorder reminders on contract cycles, and separation of trade and retail audiences.

Klaviyo for Shopify

Why Choose Mgroup for Klaviyo Implementation

Shopify-native engineering, verified event data, flows mapped to your real purchase cycle, and reporting you can reconcile against orders. We build the layer your marketing team runs on.

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Connected services
FAQ

FAQs About Klaviyo for Shopify

What does a Klaviyo email marketing agency actually do?

In our case: the engineering. We connect Klaviyo to Shopify so every event arrives, build and QA the revenue flows, design the segments, migrate you from another platform, and fix deliverability. We do not write your campaign calendar — that stays with your marketing team, running on a setup that finally works.

How long does a Klaviyo implementation take?

A focused audit takes 2–3 weeks. A full build or migration runs 4–8 weeks depending on catalogue size, how many flows you need, and whether consent data has to be reconciled from an old platform.

Can you migrate us to Klaviyo without losing our list?

Yes. We map profiles, preserve consent state and subscription dates, rebuild segments, and warm your sending domain before volume ramps. The risk in a bad migration is not lost addresses — it is re-permissioning people who already opted in, and burning your reputation on the first send.

Do we need Shopify Plus to use Klaviyo properly?

No. Klaviyo works fully on standard Shopify plans. Shopify Plus adds checkout-level events and B2B objects that make some segments richer, but the core flows and integration are identical.

Which flows should we build first?

Abandoned cart and welcome usually recover the most revenue fastest, followed by browse abandonment and post-purchase. Beyond that it depends on your purchase cycle — replenishment matters for consumables, back-in-stock for apparel. See our Klaviyo guide for the full order.

How do you measure whether Klaviyo is working?

Revenue per flow and per segment, reconciled against Shopify orders — not open rates. If a flow cannot be tied to orders it shipped, we treat it as unproven and fix the attribution first.

Related guides

Klaviyo & email guides

All Shopify guides
Klaviyo Partner

Ready to make Klaviyo earn its keep?

Talk to Mgroup about Klaviyo for Shopify — integration, flow architecture, migration, segmentation and deliverability, built by engineers.

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