Protect margin
Replace extra apps, fees, and manual fixes with a system that fits the way your business earns money.
Headless ecommerce for B2B
Headless when complexity earns it. SaaS when it does not.
We help you decide, design, and build the right B2B commerce platform for your business. Our proven process matches your needs to the smartest path - whether that is a modern SaaS platform or a custom headless solution.
No platform pitch. We recommend the simplest route that protects margin, customer experience, and your ability to change.
No obligation. No pitch. Just clarity.
The right path for your business
- 1Do you have complex contract pricing?
- 2Do you require approvals, roles, or credit?
- 3Do you sell across multiple channels?
- 4Are you tightly integrated with ERP, PIM, or WMS?
Yes
Headless custom portal
Built for complexity and control
Mostly no
Platform SaaS
Faster to launch, easier to operate
Several yes answers usually justify a deeper headless assessment.
120+
projects delivered
100+
system integrations
Fixed price
after planning
Your code
you own it
Decision signals
What usually drives the need for headless.
Headless becomes valuable when platform limits start affecting margin, service quality, or speed. A modern architecture alone is not a reason to rebuild.
Give each partner the right portal
Handle account pricing, roles, approvals, quotes, credit limits, repeat orders, split delivery, and custom returns without fighting a template.
Keep one source of truth
Connect catalog, stock, orders, and customer data across ERP, PIM, WMS, and every sales channel.
Control the customer experience
Own the UX, data, and business logic when a template or app ecosystem can no longer support the buying journey.
What the portal can handle
Prices, orders, and data in one place.
The portal should make work easier for customers and your team. Technology is the means, not the goal.
Sales channels
Online store
B2B portal
Mobile app
Support portal
Your B2B commerce portal
Catalog · pricing · orders · checkout
Company systems
ERP
PIM
WMS
Payments
Analytics
The same data everywhere. Orders, stock, customers, and prices stay consistent.
Commerce delivery record
See what we built for SFD.
For SFD, we connected online shopping, loyalty, customer activity, and a mobile app in one live product. It shows our experience in building and running multi-channel commerce.
100,000+
app downloads
4.9
App Store rating
Mobile Trends Awards 2025 nominee in Commerce
Read the SFD case study
SFD mobile commerce & loyalty
Does headless make sense?
Which path fits your business?
Best for
Headless custom portal
Complex pricing, roles, approvals, multiple channels, deep integrations
Platform SaaS
Standard needs, faster launch, limited customization
Implementation
Headless custom portal
Planned and staged to your roadmap
Platform SaaS
Faster time to first value
Flexibility
Headless custom portal
Full control over experience, data, and business logic
Platform SaaS
Configuration within the platform
Integrations
Headless custom portal
Connect ERP, PIM, WMS, payments, and any data system
Platform SaaS
Prebuilt connectors and APIs
Ownership
Headless custom portal
Your code and your data
Platform SaaS
Platform owned and managed by the vendor
Ongoing fit
Headless custom portal
Evolves with your business
Platform SaaS
Great until needs outgrow the platform
We recommend the simplest solution that meets your needs. That may be Shopify or WooCommerce when a custom headless build would cost more than it returns.
Our delivery process
A clear runway. Real outcomes.
We start with DDT: a short planning stage for the business process, design, and technology. It gives you a clear scope before a fixed-price build.
- 1
Understand the process
We learn how customers order, who uses the system, what it must connect to, and how you will measure success.
Project outline
- 2
Plan and estimate
We choose the simplest suitable technology and agree the work, budget, and launch plan.
Fixed-price proposal
- 3
Build and test
We deliver the portal and integrations in small stages. Each stage is tested and measured.
Ready-to-launch version
- 4
Launch and support
We test the load, move the data, launch safely, and agree who looks after the system.
Guide and support
Rollback thinking
We plan safe cutovers with rollback steps whenever the current commerce operation must stay live.
Budget and timing
Typical project ranges.
The final price depends on your data, integrations, migration, and B2B rules. We check these before we give you a fixed price.
Medusa core + Next.js storefront
€25k–€45k
typically 4–6 months
B2B + ERP + contract pricing
€55k–€120k
typically 6–12 months
Marketplace / multi-tenant
€85k–€150k+
depends on payments & operations
Common questions
What to know before you start.
Will migration interrupt current sales?
We plan the data move, integrations, and switch in advance. We test the new platform next to the current one and agree how to return to the old version if needed.
Do we own the platform and source code?
Yes. You receive the source code and project IP after delivery. We document the architecture and can operate it with you or hand it over to your internal team.
Can you work with our existing ERP, PIM, and WMS?
Yes. We first check the APIs, data flows, and possible errors. Where needed, the system automatically retries failed operations and keeps a clear history.
How do you prevent an open-ended build?
The planning stage defines the scope, design, technology, and integration risks before the build. You receive a written plan and a fixed-price proposal.
What if headless is not justified?
We say so. SaaS is often better for a straightforward D2C store without critical custom workflows or deep integrations.
Tell us how you sell today
Let us find the right path for your business.
Show us where the current platform slows down sales or creates manual work. We will review the process and recommend a practical next step.
No obligation. No pitch. Just clarity.
Contact
Let's talk
about the project.
Have an app idea or need technological support? Write to us — we'll prepare a preliminary analysis and estimate within 48h. Projects that go through our DDT process (Discovery, Design & Technology) come with a price guarantee and a fixed-price agreement — a key differentiator for us.
Write to us[email protected]
Visit us
GD
gmi.software Sp. z o.o.ul. Jana Heweliusza 11 / 819
80-890 Gdansk, PolandNearshore product delivery across EU, UK and US time zones.
80-890 Gdansk, PolandNearshore product delivery across EU, UK and US time zones.
NIP: 5252816287KRS: 0000830003
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