The verdict in three sentences
On an African e-commerce store, roughly 7% of payment attempts fail on the first try: provider down, timeout, momentary insufficient balance. A failover provider immediately offers a second rail (another provider or card) instead of showing an error and losing the sale. Well built, it recovers around 30% of those failed transactions, money that was already headed for the bin.
The failover triggers
Failover should only fire on the right signals, otherwise it doubles fees for nothing. Here are the recommended triggers.
| Trigger | Threshold | Action |
|---|---|---|
| Provider timeout | > 60s no response | Switch to secondary rail |
| PSP technical error | 5xx code / rail down | Reroute immediately |
| Recoverable decline | Temp balance, network | Offer another rail |
| Non-recoverable decline | Fraud, KYC blocked | Do NOT retry |
| Rail failure rate | > 8% over 5 min | Remove rail from cycle |
The key nuance: distinguish the recoverable failure (worth retrying) from the non-recoverable one (retrying only adds fees and annoys the customer).
The cascade order
The cascade defines the order in which rails are tried. Start with the most reliable/cheapest, then descend.
| Step | Rail tried | Max delay | Cumulative success |
|---|---|---|---|
| Attempt 1 | Primary rail (mobile money) | 60s | 93% |
| Attempt 2 | Secondary provider | 45s | ~96% |
| Attempt 3 | Bank card | 30s | ~98% |
| Give up | No rail available | - | Sale lost |
Going from 93% (no cascade) to 98% (full cascade), you recover 5 points of approval, a large chunk of the initial 7% failures.
Monthly revenue gain
Put numbers on the recovery. Assumption: 30% of failures recovered, average basket NGN 9,000.
| Monthly processed revenue | Initial failures (~7%) | Recovered (~30%) | Monthly gain |
|---|---|---|---|
| NGN 3M | NGN 210k | NGN 63k | NGN 63k |
| NGN 9M | NGN 630k | NGN 189k | NGN 189k |
| NGN 24M | NGN 1.68M | NGN 504k | NGN 504k |
On NGN 9M processed, failover yields ~NGN 189k/month, i.e. ~NGN 2.27M/year, for a modest setup cost.
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Mini case study
Njeri, who runs an e-commerce store in Nairobi, processes the equivalent of NGN 12M/month with ~7% failures, i.e. NGN 840k of blocked sales each month. By enabling an M-Pesa-to-card cascade, she recovers ~30% of those failures, i.e. ~NGN 252k/month of saved sales, or ~NGN 3M/year. Failover changed nothing in her acquisition: it simply stopped already-decided customers from abandoning on a technical error.
Become a Kolonell referral partner
Know merchants who lose sales to payment failures? Refer them to Kolonell and earn a commission on every signed project. Our referral (apporteur d'affaires) program is simple and transparent.
| Referred project type | Commission on sale | Recurring |
|---|---|---|
| Showcase site | 15% | + 5% recurring |
| E-commerce (failover, checkout) | 12% | - |
| Marketplace | 10% | - |
| Institutional | 8% | - |
A single referred e-commerce project at NGN 3M earns you NGN 360k in commission. No need to be technical: you open the door, we deliver the project.
FAQ
What recovery rate to expect? In 2026, a well-built failover recovers around 30% of failed transactions, sometimes more when the initial failure was just a provider timeout.
Does failover double my fees? No: you only pay fees on the transaction that succeeds. A single attempt completes and is billed; failed attempts aren't charged.
When does failover become worthwhile? From ~NGN 3M/month processed, it recovers ~NGN 63k/month, well above its setup cost. The higher the volume, the more it yields.
What switch delay is right? A 60-second timeout on the primary rail before switching is a good balance: enough to let the provider respond, short enough not to lose the customer.
How much does a Kolonell referral partner earn? 12% on an e-commerce project, 15% + 5% recurring on a showcase site, 10% on a marketplace and 8% on institutional. Commission is paid on project signature.
Let's talk about your project. We set up the failover cascade that recovers your lost sales, or we onboard you as a referral partner. 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.

