Custom software

B2B e-commerce platform development

We design and develop B2B e-commerce platforms, custom online stores for B2C and marketplace integrations. We deliver store integration with ERP, payments and carriers, and use AI in e-commerce for product content, customer service and order fulfilment.

Who a B2B platform and custom e-commerce are for

B2B sales have their own specifics: individual price lists and discounts, credit limits, multiple users on the customer side, repeat and bulk orders, documents and complaints. Standard store platforms designed for retail often cannot handle these requirements.

When partner orders arrive by email and phone, sales reps retype data into the ERP instead of selling, and customers cannot see availability, prices or statuses. A B2B platform moves this process into a self-service portal integrated with the ERP.

We also build custom B2C online stores where off-the-shelf solutions limit growth – with unusual products, configurators, multiple sales channels or complex logistics.

Typical challenges we solve

  • B2B orders taken manually from emails and phone calls.
  • Individual price lists and commercial terms for each customer.
  • No integration between the store and ERP, warehouse and carriers.
  • Product descriptions and translations written by hand.
  • Returns and complaints handled outside the system.
Scope

Custom online store and B2B platform – scope

We build sales platforms tailored to your business model, integrated with your systems and supported by AI.

B2B ordering platforms

Individual price lists, discounts and limits, multiple customer users, quick ordering, history, documents and statuses.

B2C online stores

Custom stores with configurators, multiple sales channels and complex logistics.

Store integration with ERP

Synchronisation of products, prices, stock, orders and documents with ERP and WMS.

Payments, carriers, marketplaces

Integrations with payment gateways, courier companies and marketplaces.

AI in e-commerce

AI-generated product descriptions and translations, an AI chatbot for customers, recommendations and semantic search.

Returns and complaints

Automated handling of returns and complaints with full history and customer communication.

Process

How we build a B2B platform

We start with the sales and customer service process, and only then choose features and technology.

  1. Free consultation

    We learn about your sales model, customers, product range and the systems the platform must work with.

  2. Analysis and quote

    We describe processes, integrations and features, and prepare the architecture and a staged quote.

  3. UX/UI design

    We design purchase journeys for B2B and B2C customers and the admin panel.

  4. Development and integrations

    We build the platform in sprints and integrate it with ERP, payments and carriers.

  5. Launch and growth

    We migrate data, launch sales, train the team and develop further features, including AI.

Technologies

E-commerce platform technologies

We build B2B platforms and stores in Java, Node.js, PHP or Python, with frontends in React or Angular. Data is stored in PostgreSQL, MariaDB or MS SQL Server, with Redis ensuring performance. AI features are based on OpenAI and Anthropic models.

  • React
  • Angular
  • Node.js
  • PHP
  • Java
  • Python
  • PostgreSQL
  • MariaDB
  • MS SQL Server
  • Redis
  • OpenAI
  • Anthropic
  • Docker
Example use case

A B2B platform for a distributor, integrated with ERP

A distributor serves several hundred business customers with individual prices. Orders arrive by email and phone, and sales reps enter them into the ERP by hand.

The B2B platform lets customers place orders themselves and see their prices, availability, invoices and delivery statuses. Orders go straight into the ERP, and complaints are handled in the portal. AI generates product descriptions from technical data and helps customers find the right product in the catalogue.

An illustrative scenario showing the typical course and scope of such a project.

FAQ

Frequently asked questions

How is a B2B platform different from a B2C store?

A B2B platform handles individual price lists and discounts, credit limits, multiple users per customer, bulk orders and commercial documents. A B2C store is aimed at individual retail customers.

Can the store be integrated with our ERP?

Yes. We synchronise products, prices, stock, orders and documents with ERP and WMS via APIs or other available interfaces.

How can AI help in e-commerce?

AI generates product descriptions and translations, answers customer questions, suggests products, improves catalogue search and automates the handling of orders, returns and complaints.

Do you build stores from scratch or on existing platforms?

We build custom platforms where off-the-shelf solutions limit growth. We recommend the approach after analysing your needs.

Do you handle marketplace integrations?

Yes. We integrate platforms with marketplaces, payment gateways and courier companies.

Why insideWeb

Experience since 2009, now powered by AI

  • Since 2009

    17 years of building enterprise-class web applications, custom business systems and mobile apps.

  • Industry know-how

    Many projects for automotive, logistics, healthcare, food service and catering, construction and finance.

  • From idea to maintenance

    Consulting, design, development, integrations, rollout, training and ongoing growth in one place.

  • Data security

    Solutions designed in line with GDPR and the EU AI Act, with access control and transparent costs.