The verdict in three sentences
For a building materials distributor in Copenhagen working with 180 suppliers, 60 of them importers, a supplier portal where each supplier submits quotes, delivery notes and invoices is a medium-complexity application: 300,000 to 600,000 DKK with a Danish agency in 2026, or 4,000,000 to 7,000,000 FCFA (6,100 to 10,670 EUR) with an offshore team such as Kolonell, delivered in 12 to 16 weeks. The most direct gain is removing about 2 days of data entry per week in purchasing, plus full traceability of disputes. The connector to the ERP and a monthly maintenance plan complete a controlled budget.
What a supplier portal does, module by module
Many Danish distributors still receive documents by email in every possible format, even with e-invoicing via NemHandel for public buyers. Purchasing re-keys data into Excel and then into the ERP (Microsoft Dynamics 365 Business Central, e-conomic, Uniconta).
| Module | What the supplier does | What the buyer does | Measurable gain |
|---|---|---|---|
| Supplier space | Updates contact details, CVR number, bank account | Approves bank detail changes | Bank detail fraud blocked |
| Requests for quotation | Answers online with price and lead time | Compares 3 to 5 offers side by side | 10 min comparison instead of half a day |
| Purchase orders | Acknowledges, confirms date | Tracks open orders | Chasers cut by half |
| Delivery notes | Uploads the scanned or photographed note | Matches with warehouse receipt | Discrepancies caught at delivery |
| Invoices | Uploads PDF or OIOUBL invoice | Order, delivery note and invoice matching | Automated accounting entry |
| Payment tracking | Checks invoice status | Plans payments | Fewer "where is my payment" calls |
| Import documents | Uploads bill of lading, certificates of origin | Prepares customs clearance | Complete files before arrival |
Budget, timeline and options
Price depends mainly on the number of automated flows and the quality of the ERP connection.
| Configuration | Modules included | Danish agency 2026 (DKK) | Kolonell (FCFA / EUR) | Timeline |
|---|---|---|---|---|
| Simple document portal | Supplier space + delivery note and invoice upload | 180,000 to 300,000 | 2,500,000 to 4,000,000 / 3,810 to 6,100 | 8 to 10 weeks |
| Standard purchasing portal | + RFQs + purchase orders | 300,000 to 450,000 | 4,000,000 to 5,500,000 / 6,100 to 8,380 | 12 weeks |
| Full purchasing portal | + automatic matching + payment tracking | 450,000 to 600,000 | 5,500,000 to 7,000,000 / 8,380 to 10,670 | 14 to 16 weeks |
| ERP connector option | API to Business Central or e-conomic | Often 40,000 to 80,000 extra | Included in standard and full | - |
| Maintenance | Updates, fixes, small changes | 4,000 to 10,000 per month | 75,000 FCFA (110 EUR) per month | Ongoing |
| Managed hosting | Daily backups, monitoring | 500 to 2,000 per month | 25,000 to 75,000 FCFA (40 to 110 EUR) per month | Ongoing |
Danish agency prices are market estimates. In Denmark, the main point of attention is GDPR and the security of bank details: the portal must enforce two-factor authentication and log every change. Support for OIOUBL invoice files also helps suppliers already set up for public e-invoicing.
Return on investment for management
Data entry is the hidden cost. Two days per week of a purchasing assistant earning about 38,000 DKK per month, around 45,000 DKK with employer costs, is about 40% of their time: 18,000 DKK per month or 216,000 DKK per year. Add penalties and duplicate payments, which can be estimated at 0.3% of annual purchases in a manual process.
Mini case study
Lars, purchasing director of a building materials distributor in Copenhagen, handles 250 million DKK of purchases per year. He chooses a standard portal at 380,000 DKK with a Danish agency, plus maintenance at 6,000 DKK per month (72,000 DKK per year). Estimated first-year gains: 216,000 DKK of data entry removed, plus 0.1% of avoided errors on 250 million, 250,000 DKK. Total: about 466,000 DKK, covering the initial investment within roughly 12 months, maintenance included. With the offshore option at 5,000,000 FCFA (about 57,000 DKK), payback would take under 3 months. These figures are illustrative and must be recalculated with real volumes.
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FAQ
Will suppliers actually use the portal?
Adoption usually exceeds 70% within 3 months if the company makes submission mandatory to get paid. A 30-minute video onboarding and a one-page guide are enough for most suppliers.
Can the portal connect to Business Central or e-conomic?
Yes, through their APIs, which are well documented. This connector typically represents 10 to 15% of a standard portal budget.
How long before go-live?
Count 12 to 16 weeks for a full portal, including 2 weeks of scoping with purchasing, accounting and the warehouse. A pilot with 20 suppliers usually starts around week 10.
Are supplier documents protected?
Each supplier sees only their own documents, with password plus one-time code authentication, and every action is logged. Daily backups are kept for 30 days in EU data centres.
What does the portal cost after delivery?
With a Danish agency, plan 4,000 to 10,000 DKK per month for maintenance plus hosting. With Kolonell, maintenance at 75,000 FCFA (110 EUR) and managed hosting at 25,000 to 75,000 FCFA per month, so 1,200,000 to 1,800,000 FCFA per year.
Let's scope your project. Tell us your number of suppliers, the documents to digitise and your ERP: we will price the portal module by module, with a 12 to 16 week plan. 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.
