The verdict in three sentences
For a builders' merchant with 4 depots and 2,500 trade accounts, custom software costs EUR 45,000 to 90,000 (about USD 49,000 to 98,000) in 2026, against EUR 30,000 to 70,000 for a configured off-the-shelf ERP. The real issue is not stock but control of customer credit and outstanding balances, which often represent 30 to 45 % of a merchant's revenue. The project is delivered in 6 months and should include electronic invoicing from day one, as the UAE rolls out its e-invoicing mandate.
The modules that make the difference for a builders' merchant
A merchant selling cement, rebar, blocks, tiles and sanitaryware serves small contractors paid at the end of a job and developers who negotiate 60 or 90 day terms. Without a proper tool, the counter salesperson often does not know the real exposure of the customer in front of them.
| Module | Content | 2026 custom budget (EUR) | Impact |
|---|---|---|---|
| Customer credit and exposure | Limits per account, automatic hold, schedules, post-dated cheques | 7,500 to 15,000 | Bad debt down 30 to 50 % |
| Price tiers | Contractor, reseller, developer, volume and family discounts | 4,500 to 9,000 | Margin protected at the counter |
| Multi-depot stock | 4 depots, transfers, cycle counts, batches | 7,500 to 15,000 | Stock-outs halved |
| Weighbridge and deliveries | Weighbridge link, delivery notes, truck routes, proof of delivery | 7,500 to 16,500 | Fewer quantity disputes |
| Electronic invoicing | Signed invoices, transmission to the tax platform, archiving | 6,000 to 12,000 | Regulatory compliance |
| Counter sales app | Quotes, visible exposure, order in 2 minutes on a tablet | 6,000 to 13,500 | Shorter customer wait |
| Dashboards | Margin per family, DSO, top accounts, stock turnover | 6,000 to 9,000 | Weekly steering |
A first phase covering credit, price tiers, stock and e-invoicing starts around EUR 45,000. The full version with connected weighbridge, routes and counter app reaches EUR 75,000 to 90,000.
Off-the-shelf ERP or custom: which to choose?
ERPs sold in the region handle accounting and stock well. They are less comfortable with merchant habits: post-dated cheques, fast counter sales and weighbridge tickets.
| Criterion | Off-the-shelf ERP | Custom build |
|---|---|---|
| 2026 upfront cost | EUR 30,000 to 70,000 | EUR 45,000 to 90,000 |
| Annual licences | EUR 4,500 to 12,000 | None |
| Annual maintenance | Partly included | EUR 4,500 to 10,500 |
| Post-dated cheque handling | Often custom development | Native |
| Weighbridge and routes | Third-party modules | Built in |
| Counter app | Generic interface | Designed for 2 minutes per sale |
| Go-live time | 4 to 8 months | 6 months |
If your processes are already close to standard, a well-configured ERP is a serious option. Custom wins when customer exposure and counter speed are your top problems.
Schedule and data migration
Allow 4 weeks of scoping across the 4 depots, 14 to 16 weeks of development in three phases, then 4 weeks of migration and training. Migrating 2,500 accounts and open balances must happen on a precise cut-over date, ideally at month end, with one week of parallel running.
Mini case study
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Omar, managing director of a builders' merchant in Dubai, turns over EUR 5,400,000 a year. Unpaid balances older than 180 days reach 2 % of revenue, or EUR 108,000 a year. With software at EUR 66,000 that automatically holds accounts above their limit, a 40 % cut in bad debt means EUR 43,200 recovered per year. Adding one margin point on 20 % of sales thanks to enforced price tiers, about EUR 10,800, payback comes in around 15 months.
FAQ
Is electronic invoicing mandatory for a merchant?
The UAE is phasing in e-invoicing for businesses from 2026 onwards. Building the module from the start costs EUR 6,000 to 12,000, far less than a late retrofit.
Can we connect our existing weighbridge?
Yes in most cases, through a serial or network link. The weight then flows straight onto the delivery note, removing keying errors.
Can salespeople work offline?
The counter app caches prices and balances and syncs every minute. A 30-minute outage does not stop sales.
How long does team training take?
Allow 2 days for salespeople and 4 days for accounts and depot managers. Most teams are autonomous within 3 weeks.
Does the software handle developer retentions?
Yes, retentions of 5 to 10 % and their release dates are tracked per project, with automatic reminders.
Let's scope your project. Give us your number of depots, accounts and priority modules: we will price merchant software between EUR 45,000 and 90,000 with 6 month delivery. 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.
