The verdict in three sentences
For an independent distributor with 4 branches and 18,000 SKUs, an off the shelf wholesale ERP costs, as a 2026 ballpark in Melbourne, between AUD 50,000 and 130,000 to implement, then 15 to 20 % of that amount every year in licences and support. Custom software sits closer to AUD 100,000 to 210,000 ex GST and only makes sense if your contractor pricing, trade counter and site deliveries genuinely fall outside the standard. The decision should rest on the 5 year total cost and on the quality of the ETIM and supplier data migration, never on the licence price alone.
What an electrical wholesaler's software must cover
A Melbourne electrical wholesaler does not sell like an online store. It manages thousands of supplier SKUs (Clipsal by Schneider Electric, Legrand HPM, Hager, Nexans Olex) whose prices change several times a year, discounts by product family negotiated with each contractor, a trade counter where the sparky wants to be out in 3 minutes, and next morning deliveries to building sites. The software must absorb these price files without rekeying, otherwise your sales reps spend their days in spreadsheets.
| Function | Standard wholesale ERP | Custom software | Watch point |
|---|---|---|---|
| Supplier price files and ETIM data import | Native, ready connectors | To be built (3 to 5 weeks) | How often suppliers update |
| Net pricing per contractor | Configurable by price grid | Unrestricted logic | Number of active grids (often 300 to 800) |
| Trade counter with fast checkout | Optional module | Screen designed for your staff | Target counter time: under 3 min |
| Site delivery and runs | Basic, often third party | Scheduling built for your 4 branches | Photo and signature proof of delivery |
| Multi branch stock and transfers | Native | To be built | Cycle counts on 18,000 SKUs |
| Backorders and partial orders | Native | To be built | Automatic contractor notifications |
| B2B customer portal | Often an extra cost | Built in from day one | Net prices visible after login |
The takeaway is simple: a wholesale ERP covers 80 % of the need on day one. Custom software only wins when the remaining 20 % helps you win business, for example a very specific site delivery workflow or a rebate model vendors cannot handle.
5 year cost comparison
The amounts below are 2026 ballpark figures seen on the Australian market for a 4 branch business with 20 to 30 users. They are not Kolonell rates.
| Item | Wholesale ERP | Custom software |
|---|---|---|
| Implementation and configuration | AUD 50,000 to 130,000 | AUD 100,000 to 210,000 |
| Annual licences and support | 15 to 20 % of project, i.e. AUD 7,500 to 26,000 per year | Hosting and maintenance: AUD 10,000 to 20,000 per year |
| Data migration (items, customers, prices) | AUD 8,000 to 25,000 | AUD 13,000 to 25,000 |
| Training across the 4 branches | AUD 5,000 to 13,000 | AUD 5,000 to 10,000 |
| Go live timeline | 5 to 7 months | 6 to 8 months |
| 5 year total cost (mid range) | about AUD 192,000 | about AUD 256,000 |
For the same scope, the wholesale ERP remains cheaper over 5 years. Custom software becomes competitive if it avoids expensive add on modules, or if you later license it to other members of a buying group. A third path works well: keep an ERP for accounting and stock, and build a connected B2B customer portal or trade counter app alongside it. At Kolonell, an application of this medium complexity costs between 4M and 7M FCFA, about EUR 6,100 to 10,670.
Realistic 5 to 8 month timeline
| Phase | Duration | Deliverable |
|---|---|---|
| Scoping and process audit | 3 to 4 weeks | Requirements, map of discount grids |
| ETIM and supplier data migration | 4 to 6 weeks | 18,000 cleaned items, duplicates removed |
| Contractor pricing setup | 4 to 6 weeks | Grids tested on 50 real customers |
| Trade counter, logistics and runs | 4 to 8 weeks | Counter screens, site delivery dockets |
| Pilot in one branch | 4 weeks | Fixes before rollout |
| Rollout to the 3 other branches | 4 to 6 weeks | Training, cutover, extra support |
The main risk is not technical: it is the quality of the starting data. An item file with 15 % duplicates or obsolete SKUs can add a month to the project.
Mini case study
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Mark, managing director of an electrical distributor in Melbourne (4 branches, 26 staff), estimates that each branch loses 3 hours a day rekeying prices, purchase orders and backorders. Over 230 working days, that is 4 × 3 × 230 = 2,760 hours a year. At a loaded cost of AUD 48 per hour, the loss reaches AUD 132,480 a year. If he picks a wholesale ERP that removes 60 % of these tasks, he saves about AUD 79,500 a year. With a first year budget close to AUD 120,000 (implementation, migration, training, licences), payback arrives around month 18. This scenario is illustrative and should be recalculated with your own volumes.
FAQ
How much does a wholesale ERP cost for a 4 branch distributor?
As a 2026 ballpark, budget AUD 50,000 to 130,000 to implement, then 15 to 20 % a year for licences and support. The range depends mostly on user count and on trade counter or logistics modules.
Is custom software more profitable than an off the shelf ERP?
Rarely on cost alone: about AUD 256,000 over 5 years against AUD 192,000 for a mid range ERP. It becomes relevant when your rebate rules or site logistics genuinely set you apart from competitors.
How long does migrating 18,000 SKUs take?
Plan for 4 to 6 weeks, including cleanup of duplicates and obsolete items. ETIM data supplied by manufacturers speeds things up, provided your internal codes are consistent.
Can we keep our ERP and just add a customer portal?
Yes, this is often the best compromise. A B2B portal connected by API shows each contractor's net prices and backorders, for a Kolonell budget of 4M to 7M FCFA (EUR 6,100 to 10,670) depending on scope.
What lead time should we expect before full go live?
Between 5 and 8 months, including a one branch pilot. Avoid cutting over during peak construction periods, typically before the end of financial year in June.
Let's scope your project. Send us your number of branches, SKUs and users: we will price the portal or app that connects to your ERP, with an indicative budget and a schedule. 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.
