Why Email & SMS Matter (Right Now)
Why is email marketing so important for DTC brands today?
Because paid acquisition is no longer forgiving.
Ad costs keep rising
Conversion rates are under pressure
Competition is at an all-time high
Margins are thinner than ever
Most brands try to “fix” this by spending more on ads.
The smart ones focus on retention.
Email & SMS / Whatsapp:
Are the highest ROI channels in ecommerce
Give you direct access to customers who already trust you
Increase repeat purchases without increasing CAC
Turn traffic into an owned asset (your list)
Power 30–50%+ of revenue for top DTC brands
Email doesn’t replace ads.
It makes ads profitable.
Why work with an agency?
Why not just do email in-house?
Two reasons: focus and leverage.
To run email properly, you need:
A senior strategist
A lifecycle copywriter
A experienced designer
A technical builder
And Someone owning performance, testing, and insights
Hiring this team in-house is expensive, slow, and risky.
Most brands end up with:
One overstretched marketer
Inconsistent campaigns
Untested flows
No real strategy
No accountability
With SGL, you get a full senior team for less than one hire already trained, already proven.
How is SGL different?
Your email strategy doesn’t need:
another “growth hack”
a new AI tool
a fancy framework with a cool name
or random campaigns sent “because we should send something”
It needs simplicity and good old-fashioned consistency.
🍊 At SGL, we don’t chase shiny objects or shortcuts. We focus on doing the fundamentals exceptionally well, every single day because that’s what actually compounds revenue over time.
Here’s what that looks like in practice:
Strategy always comes first
-> Every email has a clear purpose.
-> No random sends. No “just staying top of mind.”Lifecycle thinking, based on your customer
-> We don’t focus on optimizing single emails.
-> We optimize the entire customer journey from first order to repeat purchases.An in-house feel
-> We don’t operate like a vendor.
-> We work as an extension of your internal team, fully aligned with your goals.Real accountability
-> We track performance closely, explain every decision, and take ownership of the outcome.
Who is Simple Growth Lab (SGL)?
Simple Growth Lab is a retention-focused email & SMS agency for DTC brands doing €50k+/month that want predictable, scalable revenue without relying more on ads.
We don’t “send emails.”
We build entire customer journeys that increase repeat purchases, AOV, and LTV while protecting your margins with our life.
Think of us as your external lifecycle team, fully embedded into your brand.
What does SGL actually do?
We own and operate your email & SMS/Whatsapp channel end-to-end, including:
Strategy
Flows
Campaigns
Segmentation
Deliverability
Testing & optimization
Reporting & insights
Our goal is simple:
🍊 Make email & SMS/Whatsapp your most profitable and predictable growth channel.
Our Services
What services does SGL provide?
We run everything related to email & SMS/Whatsapp, including:
Welcome, Post-Purchase, Abandoned, Winback & Sunset flows
Ongoing campaign strategy & execution
Lifecylce copywriting
Visual email design (brand-aligned, conversion-focused)
Klaviyo setup, building & optimization
Segmentation strategy
A/B testing (subjects, offers, formats, timing)
Deliverability & list health management
Pop-up & list growth optimization
Revenue & lifecycle reporting
So you don’t need to manage email anymore…
Our Team & Execution
Who works on our account?
You’re not handed off to juniors.
Your account is handled by:
Senior Strategist – leads the overall growth plan
Designer – creates and builds high-converting visuals
Klaviyo Expert – handles setup and all automations
Account Manager - keeps everything on track
Everyone on your account works only on email & lifecycle, full-time.
Is there a long-term contract in place?
No.
We don’t believe in locking clients into long-term contracts to “force” retention.
We work with short initial commitments, after which the collaboration continues month-to-month. If at any point results stall or expectations aren’t met, we address it immediately. And if progress isn’t there, you’re free to walk away.
We believe strong results and a great working experience are what keep partnerships going not contracts.
Will you understand our brand voice?
Yes and it’s an ongoing collaboration.
We don’t “set and forget” your brand voice. We build it together and refine it over time using:
Structured onboarding to understand your brand from day one
Clear brand & tone frameworks to stay consistent
Fast feedback loops to adjust quickly
Unlimited revisions to get it right
What does the first 30 days look like?
The first 30 days are about creating clarity, momentum, and early wins not rushing random emails out the door.
Week 1: Audit & Direction
We start by understanding what actually drives your business.
Deep brand, product, and data analysis
Customer lifecycle mapping to spot revenue gaps and quick wins
Week 2: Strategy into Execution
We turn insights into a clear plan and first deliverables.
Flow strategy and prioritization
First email drafts shared for feedback
Pop-up and list growth improvements to unlock fast upside
Weeks 3–4: Build & Launch
We move from planning to execution.
Core flows built, tested, and launched
Campaign calendar activated
Testing framework live so learnings compound over time
From there, we shift into continuous optimization tracking performance, testing improvements, and scaling what works.
What results should we expect?
Early wins usually come from:
Better pop-ups conversion rates.
Cleaner segmentation
Mixing obvious flow gaps
Most brands see:
-> ROI within 30–60 days
-> Stronger lift after day ~45
-> Biggest compounding gains from month 3 onward
Email is a compounding system, not a one-off win.
Do you start with flows or campaigns?
It depends on what we uncover during the initial audit.
We don’t follow a fixed playbook or personal preference. We look at where the biggest impact is first.
Based on the audit:
If lifecycle coverage is thin → we start with flows
If flows are solid but campaigns underperform → we start with campaigns
If the brand is scaling and both matter → we run both in parallel
The decision is always data-led.
Not opinion-led.
Can you guarantee results?
No and anyone who does isn’t being honest!
Every brand is different.
-> Different products, margins, audiences, and starting points mean that what works for one store won’t automatically work for another.
That said, we do stand behind our work.
-> That’s why we offer a satisfaction guarantee in the first month. If you don’t feel confident in the direction, execution, and collaboration, we’ll make it right.
What we do guarantee:
Proven best practices
A clear, data-led strategy
Transparent reporting (no vanity metrics)
Continuous testing and optimization
Full ownership of performance
Results aren’t promised. They’re earned through disciplined execution over time.
How do we communicate?
We work in Slack, daily.
You’ll get:
Daily async updates
Weekly performance summaries
Monthly KPI deep-dives with updates on important work.
Regular strategy calls
No waiting on emails… or chasing from your side ;)
How quickly do you respond if there’s an issue?
We typically respond within one hour during business days.
That said, our real focus isn’t reactive support it’s prevention.
Our systems are designed to reduce issues before they happen through:
Clear processes
Proactive monitoring
Structured reviews
Strong internal QA
The goal is simple:
-> You should spend less time in Slack, not more because things run smoothly in the background.
How involved do we need to be?
Minimal.
We typically ask for:
Feedback and approvals 1–2 times per month
One (optional) monthly strategy call
Beyond that, your level of involvement is completely up to you.
-> Some brands like to stay closely involved.
-> Others prefer to be almost fully hands-off.
Both work perfectly for us.
Our goal is to build an email system that runs smoothly in the background, driven by our team and our processes not by your constant attention.
In fact, the less you need to be in Slack or checking Klaviyo, the better.
That’s how you know the system is working.
What is your pricing?
Our pricing depends on your goals, current setup, and the scope of work.
Most projects and retainers fall between €1,500 and €6,500, depending on whether it’s a project-based engagement or ongoing lifecycle management.
Before you invest anything, we start with a FREE Klaviyo audit.
Within 48 hours, you’ll receive:
A clear action plan
Identified growth opportunities
A realistic ROI projection
We only move forward when there’s a strong, realistic case for a positive return on your investment. If there isn’t, we’ll tell you exactly what to work on first even if that means not working with us yet.
Do you work on a project basis or ongoing?
Both.
Some brands start with a focused project (for example, a flow set-up, fixing flows problems or deliverability).
Others work with us ongoing as their external lifecycle team.
We’ll always recommend the structure that makes the most sense for your stage and goals.
What tools do you work with?
We primarily work with Klaviyo, integrated with Shopify.
If you use additional tools (SMS platforms, review tools, subscriptions, etc.), we’ll advise on how to connect them properly within your lifecycle strategy.
Do you work with Shopify only?
Primarily Shopify, but we’ve worked with other ecommerce platforms.
Do you handle SMS or Whatsapp as well?
Yes fully integrated with email.
Can we go over our monthly email volume?
Occasionally, yes.
If it becomes structural, we’ll adjust your scope.
Do you clean inactive subscribers?
Yes. List health is part of revenue growth.
Do you rely heavily on discounts?
No.
We focus on education, positioning, and lifecycle timing not constant promos.
Who is SGL not a good fit for?
We’re probably not the right partner if:
You’re still searching for product-market fit (Email scales what’s already working it doesn’t fix a broken offer.)
You’re looking for quick hacks or short-term wins We don’t chase trends or gimmicks. We build systems that compound over time.
You don’t believe retention deserves real focus. If email is treated as an afterthought, results will be too.
We work best with DTC brands that are already selling, understand their numbers, and want to build predictable, long-term growth through retention.
Ready to see if we’re a fit?
Book a call and we’ll look at your situation honestly even if the answer is “not yet.