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How much B2B portal and customer portal development costs: budget and stages

What drives the cost of a B2B portal and customer portal: roles, 1C/ERP integrations, personal pricing, and rollout stages. How to budget and launch an MVP without overpaying.

  • B2B portal
  • Customer portal
  • Automation

Why a B2B portal costs more than a regular website

A B2B portal is a working tool, not a storefront: different roles (client, manager, supplier), personal prices and credit limits, order approval, documents, and sync with the accounting system. Every rule is logic, states, and error handling, so scope grows with the number of journeys, not the number of pages.

Unlike B2C, the buyer already knows what they want and cares about the speed of repeat orders, not the storefront. So the interface is simpler, while rules and integrations are harder.

What the cost is made of

The basic blocks are a customer portal, a catalog with personal prices, a cart and request, order statuses, and documents. Cost grows with integrations: syncing stock, prices, and orders with 1C or ERP, payment journeys, approvals, and analytics.

Factors that change the scope of a B2B portal
FactorLow complexityHigh complexity
RolesClient + managerClient, manager, supplier, admin
PricingShared price listPersonal prices, limits, credit terms
IntegrationsManual exchange1C/ERP, CRM, payments, documents
OrdersSimple requestApprovals, repeat orders, templates
DocumentsNoneAuto-generated invoices, waybills, acts
DataCleanDuplicates, mixed formats, migration

Market ranges and what drives them

A ready typical solution with a customer portal covers a standard journey fast and cheaper. Custom development is justified when a typical product hits limits on security, integrations, or customer experience — and you need full ownership of the code and infrastructure.

  • a typical portal with a customer portal — faster, cheaper, customization limits;
  • custom with 1C/ERP integration — free journey, higher budget and timeline;
  • an MVP of one end-to-end journey — a way to validate value before the full budget.

Rollout stages that reduce risk

The sensible path is not "the whole portal at once" but an MVP of one end-to-end journey: the client sent an order → the team processed it → the client saw a status and a document. Then you add integrations and expand journeys. This spreads the budget across stages instead of spending it on features that never stick.

Where to start

Start with the most expensive pain: where managers drown in routine and clients wait. That is the first portal journey. Tell us about the process — we will suggest where to start and where to take ready components instead of building from scratch.

FAQ

Common questions

Ready solution or custom development?

If a typical portal covers the process by 80% without critical workarounds, a ready one is cheaper. Custom is justified when limits hurt security, integrations, or customer experience.

How much does a B2B portal with a customer portal cost?

It depends on roles and integrations: a typical portal is noticeably cheaper, custom with 1C/ERP is more expensive and slower. A concrete number comes after a process audit.

What effect does automation give?

Customer self-service: an order in a couple of clicks, statuses and documents without manual manager work. It removes load from the team and speeds up repeat orders.

How to start a 1C integration?

With one exchange direction — for example, orders from the portal into 1C. The rest (stock, prices, documents) is added in stages, after validating the API and data quality.

Sources
  1. H-StudioCustomer portal and B2B portal cost in 2026
  2. Web-CenterHow much B2B portal development costs
  3. Lead.MediaPortal development in Saint Petersburg