The verdict in three sentences
When your resellers still order by WhatsApp and phone, you lose hours re-keying, you miss reorders at night and on weekends, and you control neither credit limits nor history. A 24/7 B2B ordering portal with a live catalog, credit ceilings and digital payment transforms that relationship: +30% reorders and -50% order-taking calls. The choice is between a custom platform (22,000 to 55,000 USD) and a generic marketplace ill-suited to the negotiated pricing and credit limits of B2B.
WhatsApp/phone versus a dedicated portal: the real cost
Messaging-based ordering looks free but costs dearly in time, errors and missed sales. A portal structures the catalog, locks per-customer pricing and collects payment directly.
| Criterion | WhatsApp / phone | Custom B2B portal |
|---|---|---|
| Availability | Business hours | 24/7 |
| Order re-keying | Manual (errors) | Zero (direct ERP/stock) |
| Per-customer pricing | Memory / file | Automatic |
| Credit and ceiling | Fuzzy tracking | Real-time control |
| Payment | On delivery / cash | Mobile money, transfer, card |
| History and reorder | Scattered | One-click "reorder" |
| Processing cost / order | High (human time) | Marginal |
The generic marketplace, meanwhile, handles neither negotiated grids nor credit limits: it suits B2C, not a reseller network.
Budget, timeline and gains in 2026
| Item | 2026 order of magnitude (USD) | Comment |
|---|---|---|
| Scoping + B2B UX | 2,500 - 5,500 | Reseller journey, mockups |
| Portal development | 11,000 - 27,000 | Catalog, accounts, orders |
| Stock / catalog sync | 3,500 - 9,000 | ERP or stock-system connection |
| Digital payment + credit | 2,500 - 7,000 | Mobile money / card + credit |
| Total timeline | 14 - 22 weeks | Depending on stock integration |
| Annual maintenance | 3,300 - 8,000 | ~15% of the build |
Distributors who switch see +30% reorders (24/7 availability) and -50% calls, often the equivalent of an order-taking role redeployed to customer follow-up and collections.
Mini case study
Koffi runs a cleaning-products distributor: 180 resellers, 2 people dedicated to phone and WhatsApp order-taking. He deploys a custom portal at 40,000 USD. Within six months: reorders rise 30% (resellers order in the evening after closing), order calls drop 50%, and one of the two people is redeployed to collections, lowering bad debt. With an average basket of 150 USD and 180 active resellers, +30% reorder frequency represents several thousand dollars of additional monthly revenue: the investment pays back in under a year.
FAQ
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How much does a custom B2B ordering portal cost in 2026?
Budget 22,000 to 55,000 USD for a portal with a stock-synced catalog, credit management and digital payment. The price depends mainly on the depth of stock integration.
What go-live timeline should I expect?
Between 14 and 22 weeks. A first batch of pilot resellers can start in 10 to 12 weeks to validate usage before full rollout.
Can mobile money and card payment be integrated?
Yes, it's standard: the portal collects by mobile money, transfer and card, and handles payment on delivery or on credit for trusted resellers. Reconciliation is automatic.
How are reseller credit limits managed?
Each reseller has a ceiling; the portal blocks or flags for review any order exceeding it while letting compliant orders through. This cuts bad debt without slowing good customers.
Isn't a generic marketplace enough?
Not for a reseller network: it handles neither per-customer negotiated pricing nor credit limits. It targets B2C; a custom B2B portal mirrors your real commercial rules.
Let's scope your project. Tell us your number of resellers, your current stock management and your payment methods: we'll frame the scope and an indicative budget (often 22,000-55,000 USD). 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.

