The verdict in three sentences
An ageing B2B store is expensive in lost sales: every point of mobile conversion missed is volume going to a competitor. A UX + front redesign (8,000,000 to 22,000,000 FCFA) is often enough to win +34% mobile conversion; a full redesign with back office (25,000,000 to 45,000,000 FCFA) is justified when the technical foundation blocks you. In both cases, ROI lands in 7 to 11 months if you measure before/after.
Partial or full: what each scenario covers
The choice depends on the state of your back office and integrations, not just your budget.
| Scope | Partial redesign (UX + front) | Full redesign (+ back) |
|---|---|---|
| 2026 budget | 8,000,000 – 22,000,000 FCFA | 25,000,000 – 45,000,000 FCFA |
| Timeline | 8 – 10 weeks | 12 – 16 weeks |
| Design + journey | Yes | Yes |
| Pricing / quote engine | Kept | Rebuilt |
| ERP/stock integration | Kept | Rebuilt |
| Ideal if | Back office still holds | Foundation is end-of-life |
If your back office still does the job, a partial redesign captures most of the conversion gain for a third of the budget. Otherwise, the full one avoids paying twice.
The ROI, measured in before/after KPIs
A redesign is judged not on feel but on numbers. Here is the expected order of magnitude on an active B2B store.
| KPI | Before | After (estimate) |
|---|---|---|
| Mobile conversion | base | +34% |
| Average order value | base | +18% |
| Bounce rate | 61% | 42% |
| Go-live timeline | — | 8 – 16 weeks |
| Return on investment | — | 7 – 11 months |
| Repeat orders | base | +21% |
Mobile conversion plus average order value carry most of the ROI: in a market where B2B traffic is mostly mobile, these two points make all the difference.
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Mini case study
Aisha, e-commerce manager of a hygiene-products wholesaler in New York (2,800 SKUs, 60% mobile traffic), picks a partial redesign at 16,000,000 FCFA because her ERP is recent. Her store converted 1.4% on mobile. With +34%, it reaches 1.88%. On 900 mobile sessions/day and an 85,000 FCFA average order (itself +18%), she estimates +3,100,000 FCFA of additional monthly revenue. The redesign pays back in about 8 months, within the stated range.
FAQ
How do I know a partial redesign is enough? If your back office, pricing engine and ERP integrations still hold, a UX + front redesign captures most of the gain. The full one is justified only if the foundation blocks evolutions.
Why does mobile conversion matter so much in B2B? Because a large share of B2B buyers in West Africa browse and order from their phone. A slow or confusing mobile journey drives away high-value recurring orders.
What timeline to expect? 8 to 10 weeks for a partial redesign, 12 to 16 weeks for a full one with back office and integrations. The schedule depends mostly on data migration and testing.
How long until the redesign pays back? Budget 7 to 11 months if you measure before/after KPIs. Average order value (+18%) and mobile conversion (+34%) are the two levers that speed the return.
Can we redesign without taking the site down? Yes: we prepare the new front in parallel, then switch over on a short window. Migrating the catalog and customer accounts is the point to scope early.
Let's scope your project. Tell us your foundation's age, your mobile traffic and your average order value: we price partial vs full with the expected ROI. 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.