Free playbook · 117 pages · for brands doing €5M to €30M online
The playbook our own team works from on every Shopify project. Every tactic, number and setting, our price bands included. Free to read, straight away.
Shopify Platinum Partner · 2× Agency of the Year
★★★★★ 4.9 out of 5 · 145 reviews
BRANDS WE HELPED
A note before you start
Robin Laseur
Managing Director, Flatline Agency
A selection. Page numbers as in the book.
p. 08
See what is left of every sale after returns, discounts, payment fees and apps, and which line to fix first.
p. 23
The five questions that sell
What every product page has to answer above the button before a visitor buys.
p. 27
Sales you miss in search
The free Shopify report of every search that found nothing, and three settings that fix most of it in minutes.
p. 31
A checkout more people finish
Why fewer fields beat a redesign, and what to change first.
p. 44
Discounts that keep their profit
How much more you have to sell for every point of discount just to break even.
p. 51
Revenue you do not pay for twice
The six email flows we build first, in the order we build them.
p. 54
Showing up in ChatGPT
What AI assistants say about your products, and how to fix it.
p. 64
A migration before Black Friday
The latest day to start and still sell on Shopify on Black Friday 2027.
p. 70
What a migration really costs
Our own prices, printed, for a template build, a custom build and every month after.
p. 76
When not to move to Shopify
Six situations where we would tell you to stay where you are.
p. 99
A go-live without lost sales
The plan we run from a week before to three days after.
p. 107
The 12 mistakes
What makes a migration cost more than it earns. Three of them are ours.
pages
sections
tactics
models
Part One
The Receipt
What a visitor sees, buys, sends back and costs you. In our experience, roughly 80% of your result is decided here.
Part Two
The Move
The platform under your receipt, and the other 20%. When to stay, when to move, what it costs, and how to count back from Black Friday.
Part Three
The Key Handover
Go-live, the first 90 days, and the twelve mistakes we see most often. Ours included.
Flatline is a Shopify Platinum Partner, the highest of Shopify’s five partner levels, named Digital Agency of the Year and Innovative Agency of the Year. Brands rate us 4.9 out of 5 across 145 reviews. Around fifty people in Amsterdam, Berlin, New York and Dubai work inside Shopify stores every day.
★★★★★
★★★★★
“They successfully managed our migration and data transition from WooCommerce to Shopify, while laying a strong foundation for our new store.”
Perro Collection
Store migration · Shopify Partner Directory
★★★★★
“Flatline Agency gave our website a beautiful redesign and guided us expertly through the move to Shopify. Clear communication, great advice, and a smooth transition from start to finish.”
JohnBeerens.com
Store build or redesign · Shopify Partner Directory
★★★★★
“They don’t just wait for instructions, but actively think along with us, challenge ideas when needed and look for solutions that make sense for the business.”
Lofty Manner
Ongoing website management · Shopify Partner Directory
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© 2026 Flatline Agency
Shopify Platinum Partner · 2× Agency of the Year