Protect margin
Replace extra apps, fees, and manual fixes with a system that fits the way your business earns money.
B2B commerce & partner portals
Build a B2B portal around the way you sell.
We build portals for dealers, distributors, and B2B customers. They handle contract pricing, roles, approvals, quotes, credit limits, repeat orders, and ERP/PIM/WMS integrations.
You set the sales rules. The platform follows them, while the code and data stay under your control.
Reply within 24h · initial estimate within 48h · fixed price after planning
OSB2B sales system
System mapSales channels
Online store
Mobile app
B2B portal
Main sales system
MedusaJS / custom
Catalog · pricing · orders · checkout
Company systems
ERP
PIM
WMS
The same data everywhere
Orders, stock, customers, and prices stay consistent.
120+
projects delivered
100+
system integrations
Fixed price
after planning
Your code
you own it
When your current platform gets in the way
Sales grow. So do exceptions and manual work.
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.
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 studySFD mobile commerce & loyaltyiOS · Android
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 rules for each account
Contract pricing, credit limits, customer roles, approvals, quotes, payment terms, repeat orders, and a clear history of changes.
Dealer and distributor portals
Each partner sees the right catalog, prices, order tools, documents, and account data without duplicating sales rules.
Reliable integrations
We connect ERP, PIM, WMS, payments, and logistics. We track errors and automatically retry failed operations where needed.
A checkout you control
Improve the buying flow, payments, promotions, and analytics without waiting for the platform provider.
Plan first, code second
We agree scope, cost, and risks before the build.
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.
- 01
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 - 02
Plan and estimate
We choose the simplest suitable technology and agree the work, budget, and launch plan.
Fixed-price proposal - 03
Build and test
We deliver the portal and integrations in small stages. Each stage is tested and measured.
Ready-to-launch version - 04
Launch and support
We test the load, move the data, launch safely, and agree who looks after the system.
Guide and support
Does headless make sense?
Headless is not the right answer for every store.
Headless is likely a fit when
- Revenue depends on custom B2B or checkout workflows.
- ERP, PIM, or WMS integration is business-critical.
- Several channels need one commerce model.
- You want to own the code and control long-term costs.
Choose SaaS first when
- You need a standard D2C store live quickly.
- Your workflows fit proven platform apps.
- You do not have a team or partner to maintain a custom backend.
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.
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’s find the right B2B portal 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.
Response within 24h · initial estimate within 48h · fixed price after planning · you own the source code
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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