The verdict in three sentences
Migrating to a new ERP coupled with a B2B e-commerce portal costs a Singapore wholesaler 22,000 to 70,000 EUR in 2026, depending on whether you choose an integrated suite or custom connected blocks. The sensitive line is not development but data migration (catalog, customers, receivables) and the real-time stock connection. Done well, it cuts order errors by 60 % and digitizes pro orders previously placed by phone.
Integrated suite or connected blocks
The integrated ERP+e-commerce suite reduces friction points but imposes its model; custom connected blocks fit your processes and local payment methods.
| Criterion | Integrated suite | Custom connected blocks |
|---|---|---|
| Initial budget | 22,000 - 44,000 EUR | 40,000 - 70,000 EUR |
| Project timeline | 4 - 5 months | 6 - 7 months |
| Digital wallet native | Rare | Native |
| Deferred payment | Vendor-dependent | Custom |
| Process fit | Limited | Full |
| Real-time stock | Included | Custom |
| Maintenance | 900 - 1,900 EUR/mo | 1,400 - 2,800 EUR/mo |
Phases and deliverables
The migration runs in five phases over 4 to 7 months. Data recovery conditions everything else.
| Phase | Duration | Deliverables |
|---|---|---|
| Scoping & data audit | 3 - 5 wks | ERP mapping, recovery plan |
| Catalog & customer migration | 5 - 7 wks | Cleaned data, receivables recovered |
| B2B portal & pricing | 6 - 8 wks | Pro accounts, pricing, orders |
| Payment & real-time stock | 4 - 6 wks | Digital wallet, terms, stock sync |
| UAT & cutover | 3 - 4 wks | Testing, training, go-live |
Budget by line item and ROI
On a 50,000 EUR project, data migration and the stock connection account for nearly half the budget.
| Line item | Share | EUR range |
|---|---|---|
| Data migration (catalog, customers, receivables) | 25 % | 9,000 - 17,000 |
| B2B portal & accounts | 20 % | 8,000 - 14,000 |
| Digital wallet + deferred payment | 18 % | 7,000 - 12,500 |
| Real-time stock connection | 17 % | 6,000 - 11,500 |
| Back-office & permissions | 12 % | 4,500 - 8,500 |
| Training, testing, cutover | 8 % | 3,000 - 6,000 |
Mini case study
Mr. Tan, a hygiene-products wholesaler in Singapore, invests 46,000 EUR in custom connected blocks delivered in 6 months, with 1,900 EUR/month maintenance. Before, 15 % of his phone orders contained an error, at about 38 EUR average cost each on 800 orders/month, i.e. 4,600 EUR/month in losses. The B2B portal brings the error rate to 6 %, saving 2,760 EUR/month: the investment pays back in just over 16 months, excluding the commercial gain from 24/7 ordering.
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FAQ
What is the riskiest line item?
Data migration: catalog, customers and especially receivables must be recovered without loss. It represents about a quarter of the budget and conditions the success of the whole project.
Integrated suite or custom blocks?
The integrated suite starts cheaper and faster but handles local digital wallets and deferred payment poorly. Custom blocks win as soon as those payments and your specific processes are central.
How soon without double entry?
From cutover, if the real-time stock connection is validated in UAT. Allow 4 to 7 months of project before getting there.
Is deferred payment manageable online?
Yes: the portal can offer instant digital payment or 30-day terms depending on the pro customer's scoring, with automated reminders.
What maintenance budget should I plan?
Between 900 and 2,800 EUR/month depending on architecture, covering fixes, catalog evolutions, keeping stock sync alive and security.
Let's scope your project. Describe your current ERP, order volume and target payment methods, and we will price the best-fit ERP + e-commerce migration (suite or blocks). 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.
