The verdict in three sentences
A licensed distribution ERP (Odoo, vertical solution) is fine while your purchasing, stock and invoicing stay standard and volumes are moderate. Once you manage customer-specific pricing, complex discounts, multi-warehouse and fine-grained margin control, custom ERP pays off over five years despite a higher entry ticket. The real question is not the software price but the total cost of ownership and the margin you recover by steering your prices.
License vs custom: the true 5-year cost
The classic trap is comparing the opening quote. An Odoo license looks unbeatable at signature, but integration, maintenance and per-user seats pile up. Here is the 2026 order of magnitude for a 25-user distributor.
| Item | Odoo / vertical license | Custom ERP |
|---|---|---|
| License / initial build | 24-45 EUR/user/month | 90,000-250,000 EUR |
| Integration & setup | 20,000-70,000 EUR | Included in build |
| 25 seats over 5 years | 36,000-67,500 EUR | 0 EUR |
| Annual maintenance | 12-18 % of build | 15-20 % of build |
| Heavy customization | Rework at every version upgrade | Native |
| 5-year total (estimate) | 110,000-190,000 EUR | 150,000-320,000 EUR |
Over five years the gap narrows sharply: custom removes recurring seats and the hidden cost of upgrades that break your customizations.
What you actually pay: modules and timelines
A distribution ERP is built in blocks. Each module has its own cost and timeline, which lets you phase the project.
| Module | Scope | Indicative timeline |
|---|---|---|
| Purchasing & supply | Supplier orders, receiving, landed cost | 4-6 weeks |
| Multi-warehouse stock | Locations, counts, transfers | 5-7 weeks |
| Invoicing & accounting | Invoices, credit notes, ledger export, VAT | 4-6 weeks |
| CRM & pricing | Customer pricing, discounts, live margin | 5-8 weeks |
| Executive reporting | Margins, turnover, stockouts, top clients | 3-4 weeks |
An expert team's day rate sits between 480 and 620 EUR in 2026, for a total delivery of 5 to 9 months depending on module count.
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Mini case study
Marc, CFO of a building-materials distributor in Toronto (28 staff, 14 M EUR revenue), runs 3 % stockouts and prices in Excel. A custom ERP at 160,000 EUR plus 28,000 EUR maintenance/year cuts stockouts by 30 % and recovers 12 % of margin on the price-control line. On a 2.8 M EUR gross margin, those 12 % are roughly 336,000 EUR recovered in the first full year: the investment is repaid in under 8 months of operation.
FAQ
Isn't Odoo enough for a distributor? Yes, for standard processes and fewer than 20 users, with integration of 20,000 to 70,000 EUR. Custom becomes relevant once your pricing rules and multi-warehouse force specific development at every version upgrade.
How much is custom ERP maintenance? Budget 15 to 20 % of build cost per year, i.e. 24,000 to 50,000 EUR for a 160,000 EUR ERP. That covers fixes, minor evolutions and support.
How long until go-live? From 5 to 9 months depending on module count. Phasing purchasing-stock first, then CRM-pricing, allows a first go-live in 3-4 months.
What ROI should I realistically expect? Precise price control often recovers +12 % margin on the affected lines, and cutting stockouts -30 % improves service level. Payback is measured in months, not years.
Can we migrate from an existing system? Yes, data migration (items, customers, history) is a dedicated 3-6 week lot, quoted separately based on how clean your current database is.
Let's scope your project. Tell us your volumes, warehouse count and pricing rules, and we will frame a phased ERP with an indicative budget and priorities. 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.
