If you already run B2B commerce, you are not shopping for a theme. You need to know whether Virto Commerce B2B ecommerce solutions can carry your catalog, contract pricing, and ERP rules without rebuilding those rules in the storefront.
Buyers expect account-specific catalogs, tiered or contract price, and punchout or approval flows that a retail-shaped platform was not built to hold. Legacy stacks often handle that with customizations that get slower every quarter.
Virto Commerce is a composable, cloud-native B2B platform. Its modular architecture and independent services let you change catalog, pricing, and integrations without treating every change as a full replatform.
Practical test: In the demo, can one account see its contract price and assortment while another sees a different list, with ERP still holding the price rule?
The Nature of B2B Complexity
B2B commerce usually involves several buyer types (dealers, distributors, OEMs), each with catalogs and roles. Pricing is rarely one list. You see tiers, volume breaks, account-specific prices, negotiated contracts, and discounts that change by customer.
Product catalogs often run to tens or hundreds of thousands of SKUs with rich attributes. Buyers expect faceted, attribute-level search across that catalog, not a retail search box.
You also handle multiple geographies (currencies, tax, language) and tight back-office sync. In practice, the storefront has to stay aligned with customers, products, inventory, and pricing in ERP, PIM, or WMS.
Altogether, the platform has to be integration-friendly, or operations will keep selling around it.
The Virto Architecture: Built to Be Broken Apart
Virto breaks ecommerce into independent service modules (Packaged Business Capabilities, or PBCs). Each core function (cart, catalog, pricing, orders, promotions, search) is a separate microservice that can be deployed, scaled, and upgraded on its own.
The platform includes 80+ ready-to-use PBCs (for example Catalog, Price Lists, Orders), each installable as a package. In the Commerce Modules layer, independent modules each handle one goal and connect to others through APIs.
Because those modules do not share hard dependencies, teams can work in parallel, and you can upgrade or replace one component without touching the rest.
- Packaged Business Capabilities (PBCs): Out-of-the-box modules cover common B2B scenarios. You can also add custom modules for a niche workflow.
- Independent scaling and upgrades: Each module can use its own database or share one, and can be scaled or updated without redeploying the whole platform. You can scale pricing under load without touching search.
- Parallel development: Separated modules let different teams (or vendors) build at the same time without colliding in one monolith.
Virto’s Atomic Architecture is designed for composability. A module can be replaced with a third-party or custom service. You could swap search for a specialized engine, or keep customer records in an external CRM, as long as the systems talk through APIs.
That design also changes maintenance: you update one module instead of a huge monolith, and you only run the capabilities you need.
If you are still deciding whether to leave the current platform, start with B2B ecommerce replatforming.
Microservices and Composability in Practice
Composability means you assemble a solution from interchangeable services and APIs. Virto’s platform follows the MACH pattern (Microservices, API-first, Cloud-native, Headless).
APIs expose business logic, so front ends and integrations talk to Virto through REST or GraphQL. You can swap or upgrade modules independently, build around systems you will keep, and orchestrate processes that a packaged storefront would hard-code.
- Mix and match modules: Virto’s design lets you replace a subsystem. Virto describes this as keeping working back-end systems and swapping the pieces that no longer meet the job. You keep what works and change what does not.
- ERP-centric integration: Many B2B companies cannot rip out SAP or another ERP. Virto can support real-time ERP integration so pricing, inventory, and orders move both ways, including with legacy systems. You still have to write down where price and stock come from.
- Custom workflows: Because services are API-driven, you can script processes the core product does not ship as a single button. A quote or approval pipeline for high-value orders can chain the Order module with a workflow you own.
Keep contract price and availability in ERP. Do the ERP ecommerce alignment work before you connect modules.
Need separate checkout flows for different buyer groups? Each storefront can call different APIs or services. You compose the workflow for each segment without rewriting core logic.
You can still plug in a PIM, payment gateway, or search engine and keep one commerce backbone. Virto Commerce integration with existing systems shows how that wiring usually looks.
Example: Complex B2B Flow for an Industrial Distributor
Consider an industrial distributor selling machinery and parts. Pricing lives in SAP and depends on negotiated contracts. The online store can call SAP through an API to retrieve the right price for each order line.
Large orders need manager approval. That can sit as a separate service or rule in an orchestration layer (for example, route orders over a threshold to a supervisor queue). Some corporate buyers purchase through Coupa or Ariba using punchout catalogs.
Virto can handle punchout by integrating with a punchout gateway such as TradeCentric: the buyer shops a Virto-powered catalog inside the procurement UI, and orders flow back into Virto and SAP.
In that flow, decoupled services work together. Catalog serves a punchout storefront, Pricing talks to SAP, and Order or workflow modules enforce approvals. Each part can evolve without forking a monolith.
Even if your SAP setup is different, catalog, price, and approvals can still change without rewriting the whole stack. That is the point of splitting those pieces.
Tech Stack and Extensibility
Virto’s core is an open-source .NET platform, which gives C# teams a familiar extension model. It is built to run in the cloud on Azure, AWS, and similar setups, typically with Kubernetes or Docker.
The platform is headless and API-first. Business logic is isolated, with REST and GraphQL so a React, Angular, Vue, mobile, or custom portal front end can connect without a locked templating engine.
You extend Virto with modules or middleware. A new payment gateway, analytics hook, or business rule is a module that listens to events or APIs. The open-source core also means you can change the base platform when a project truly requires it.
If you only need a short definition of the product, start with what is Virto Commerce. The architecture above is about catalog, price lists, and ERP, not a product glossary.
Why This Matters: Total Cost of Change
Architecture only matters if it changes what the next catalog or price change costs you. If it does not, you are paying for flexibility you will not use.
With Virto you run the functionality you use. If you do not need a marketplace module, you omit it. Smaller services usually mean a lower total cost of ownership than a monolith that ships unused features you still have to test.
Upgrades are narrower: you update one microservice with less downtime than a full-platform patch. Teams ship faster because smaller codebases and clear APIs mean fewer things break when you change one piece.
Traditional platforms (including many Magento or SAP Commerce estates) bundle unused features and need broad retesting for each change. Decoupling does not make integration free. It reduces the cost of evolving the stack over years if you keep ERP as the source of price and availability.
- Reduced upgrade scope: Only relevant modules need to change, so upgrades take less time and testing.
- Faster feature delivery: Teams work in parallel on different modules.
- Future integrations: New services can be added without a second full replatform, as long as it stays clear where catalog and price come from.
We do not publish a standard TCO percentage or license comparison. Expect a smaller change cost only if you actually keep modules independent and leave price in ERP.
Work with a Virto Commerce implementation partner if you want help fitting those modules to your catalog and ERP.
Ready to test your replatform readiness?
If contract pricing, assortment, and ERP handoff are still fuzzy, book a B2B eCommerce Discovery Sprint.
