How much does a customer portal with reserved area cost
Updated September 13, 2026
The customer portal is the project SMEs postpone for years while the office answers the phone: "can you resend that delivery note?", "where is my order?". A reserved area where customers find documents, orders and job status by themselves pays back in freed office hours — and customers read it as a supplier stepping up a league.
Price ranges
Document portal
€4,000 – 10,000
Per-customer login and documents in the right place: invoices, delivery notes, certificates, manuals. Fed automatically from the ERP or uploaded by the office.
Operational portal
€10,000 – 25,000
The customer acts: sees order and job status, opens support tickets, reorders from their own price lists. Requires real ERP integration.
Full B2B portal
€25,000 – 50,000
Per-customer catalogues and prices, orders with approvals, sales network and statistics. A private B2B e-commerce tailored to your processes.
The deciding item is almost always ERP integration: modern APIs are cheap to connect, a closed system may need scheduled exports or bespoke work. Have it checked before signing.
What actually moves the quote
- The ERP: modern APIs, file exports or a closed database — the same feature can cost three times as much depending on the entry door.
- Permissions: one login per customer company is simple; multiple users per customer with roles is real design work.
- Documents: if they are already tidy in the ERP they publish themselves; if they live in scattered folders, half the project is sorting them out.
- Volume: 50 customers or 5,000 change hosting, performance and support.
The classic mistake: starting too big
Portals that work start with documents and grow: first downloadable invoices and delivery notes — that alone kills half the phone calls — then order status, then reorders. Starting from the "full portal" costs three times as much and lands in a year; starting in phases delivers value in month two and lets real usage data drive the next steps.
Frequently asked questions
Do I need an app or is web enough?
A well-built web portal is almost always enough, and works from the phone. A native app only makes sense for offline use or push notifications — and can be added later.
My ERP is old: can it still be done?
Almost always: without APIs you work with scheduled exports or direct database access. The portal can even be the first step to modernise the rest without touching the ERP.
How long does it take?
A document portal 1–2 months, an operational one 3–5. Budget a couple of your own weeks too: someone in the company must decide what customers see and verify the data.
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