The verdict in three sentences
A partner extranet for an Amsterdam mid-cap runs between 25,000 and 60,000 EUR depending on the number of roles, catalogue depth and ERP connector complexity. The API integration with your system (SAP, Sage X3, Exact) alone represents 5,000 to 15,000 EUR. Expect a 12 to 20 week timeline and non-negotiable SSO + 2FA security from the very first distributor connected.
The budget module by module
A partner extranet goes beyond a simple portal: it handles multiple roles (distributor, sales rep, admin), a catalogue priced by segment, and orders that must flow back into the ERP. Here are 2026 orders of magnitude.
| Module | Scope | Indicative cost (EUR) | Timeline |
|---|---|---|---|
| Role management + SSO | Multi-profile, fine permissions | 4,000 - 8,000 | 2-3 wks |
| B2B catalogue | Segment pricing, availability | 5,000 - 11,000 | 3-4 wks |
| Order capture | Cart, approval, history | 5,000 - 12,000 | 3-4 wks |
| Order/delivery tracking | Statuses, documents, reminders | 3,500 - 8,000 | 2-3 wks |
| ERP connector (API) | Sync products, prices, orders | 5,000 - 15,000 | 3-5 wks |
| 2FA security + audit | Two-factor auth, logs | 2,500 - 6,000 | 1-2 wks |
Combine these blocks and you land naturally in the 25,000-60,000 EUR range, QA and training included.
Security and integration: the two line items that blow budgets
Two factors explain the gap between a 25,000 and a 60,000 EUR extranet: ERP API quality and the required security level. Here is how they break down.
| Item | Economy option | Robust option | Budget impact |
|---|---|---|---|
| Authentication | Login + password | SSO + 2FA + SCIM | +3,000 to 7,000 EUR |
| ERP connector | Scheduled CSV export | Real-time two-way API | +6,000 to 12,000 EUR |
| Environments | Prod only | Dev + staging + prod | +2,500 to 5,000 EUR |
| SLA / monitoring | Best effort | 24/7 monitoring, 99.9 % uptime | +3,000 to 8,000 EUR/yr |
| GDPR / audit | Basic compliance | Audit + full logging | +2,000 to 5,000 EUR |
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Mini case study
Meet Laurent, sales director of a 140-person industrial mid-cap near Amsterdam, with 85 active distributors. His reps manually key in around 400 orders/month received by email and phone, at 12 minutes each, i.e. 80 hours/month. He invests 48,000 EUR in an extranet with a Sage X3 connector. Distributors now enter 75 % of orders themselves: about 60 hours/month saved, roughly 2,100 EUR/month in sales time (35 EUR/hr loaded), plus a drop in entry errors. ROI in about 23 months, with reps refocused on selling.
FAQ
What's the price difference between a client portal and a partner extranet? An extranet typically costs 30 to 50 % more than an equivalent client portal, because of multi-role management and the ERP connector. Expect 25,000 to 60,000 EUR versus 18,000 to 45,000 for a portal.
Is the ERP connector really essential? Without it you re-key orders by hand and lose the benefit. A two-way API integration costs 5,000 to 15,000 EUR but it is the heart of the ROI.
Should I force two-factor auth on distributors? Yes for any access to confidential pricing and commercial data. The SSO + 2FA add-on is 3,000 to 7,000 EUR and sharply cuts fraudulent-access risk.
How long until go-live? Expect 12 to 20 weeks depending on ERP complexity. The connector and pilot QA with 2-3 distributors often take a third of the schedule.
What annual maintenance budget? Plan 15 to 20 % of the build per year, i.e. 4,000 to 12,000 EUR/year, covering monitoring, catalogue evolutions and security updates.
Let's scope your project. Tell us your ERP, number of distributors and target budget (around 40,000 EUR) and we'll frame the connector and pilot within 48 h. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
