MedusaJS vs Shopify for B2B commerce
A comparison of MedusaJS and Shopify for B2B commerce: contract catalogs, customer pricing, ERP, PIM, WMS, checkout, maintenance and total cost of ownership.
Shopify is a good choice for simpler B2B commerce when the process fits platform rules and speed matters. MedusaJS makes sense when B2B sales requires custom price lists, limits, ERP/PIM/WMS integrations, unusual checkout, multiple buyer roles and full ownership of commerce logic.
The short answer: business context wins, not the tool name
This comparison should not start with a feature checklist. It should start with the sales process: how pricing is set, who approves orders, where availability comes from, how trade credit works, whether the customer has a contract catalog and what must return to ERP.
Shopify wins on launch simplicity and ecosystem. MedusaJS wins when the company does not want to bend the process around a platform but build the platform around the process. The more B2B exceptions exist, the less useful subscription comparison becomes without workaround cost.
When the first option is the better choice
MedusaJS fits companies where B2B commerce is an operational advantage, not just another channel. If prices, discounts, limits, inventory and approvals come from internal systems, an open commerce engine gives more control.
It makes most sense when the same backend must support web, mobile app, sales rep portal, integrations and unusual order flows.
- Price lists and catalogs differ by customer, country, contract or role.
- ERP/PIM/WMS are systems of record and the store must respect their rules.
- The company wants to own code and commerce logic without closed-platform lock-in.
When the second option makes more sense
Shopify is reasonable when the company needs a fast launch, has a standard catalog, few pricing exceptions and can accept working within platform and app boundaries.
It is a good option for teams that prefer buying store operations instead of maintaining their own commerce engine. The condition is honestly calculating fees, apps, take rates and changes that do not fit the standard.
- The B2B process is simple and close to D2C.
- Time-to-launch matters more than full architecture ownership.
- The team does not need a separate backend for mobile, sales reps and integrations.
Risks hidden by a simple comparison
The MedusaJS risk is ownership of custom architecture. The Shopify risk is growing workaround, app and limitation cost that looks small at the start but determines margin or release speed after a year.
In B2B, hidden exceptions are especially dangerous: manual price lists, trade credit, manager approvals, partial shipments, repeat orders, quantity pricing and customer-required documents.
- Comparing monthly subscription without integration cost.
- No migration plan for customers, catalog and order history.
- Assuming every B2B process can be solved by a marketplace app.
How to decide without burning budget
Compare the three-year cost of operating the process before comparing platforms.
- List all pricing, catalog, availability, limit and approval rules.
- Assess which rules are platform-standard and which require workarounds or custom code.
- Calculate integration and maintenance cost, not only first-release implementation.
- Decide whether B2B commerce is a standard channel or an advantage requiring ownership.
How GMI helps
GMI designs B2B commerce on MedusaJS, Next.js and ERP/PIM/WMS integrations, but not every case should start with a custom platform. In DDT, we compare Shopify, lighter headless and a dedicated commerce engine.
That makes the decision about process cost, integration risk and code ownership, not platform fashion.
Frequently asked questions
- Is Shopify suitable for B2B?
- Yes, if the B2B process is relatively standard. With many price lists, limits, roles and integrations, you need to calculate workaround and limitation cost.
- When is MedusaJS better than Shopify?
- When the company needs custom commerce logic, deep integrations, flexible checkout, one backend for many channels and full code ownership.
- How should you compare MedusaJS and Shopify cost?
- Compare cost over 24-36 months: implementation, fees, take rates, apps, integrations, maintenance, workarounds, manual work and the cost of not evolving the process.
Content updated: July 29, 2026
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