The verdict in three sentences
The mobile money checkout is where your sales evaporate: between cart and confirmation, 30-45% of buyers abandon. The cause is almost never price, but UX friction: manual number entry, shaky USSD redirects, no retry after timeout. By fixing the six highest-ROI issues, you push completion from 60% toward 75-80%, which mechanically equals +25% revenue at constant traffic.
The checkout funnel and its leaks
Mapping the funnel step by step reveals exactly where to act. Orders of magnitude observed on mobile money stores in Senegal and Nigeria in 2026:
| Step | Pass-through | Drop-off | Main cause |
|---|---|---|---|
| Cart to checkout | 82% | 18% | Surprise shipping fee |
| Number entry | 90% | 10% | Keyboard, phone format |
| Operator choice | 94% | 6% | Missing operator |
| OTP / USSD authorization | 78% | 22% | Redirect, timeout |
| Final confirmation | 95% | 5% | Doubt about debit |
| Overall completion | 55-70% | 30-45% | Accumulated friction |
The authorization step (OTP / USSD / deep-link) concentrates the biggest leak: that is where most of the optimization happens.
The six highest-ROI fixes
Not all optimizations are equal. Here is the ranking by measured impact, from most to least profitable, in conversion points gained:
| Rank | Fix | Estimated gain | Effort |
|---|---|---|---|
| 1 | Deep-link into Wave / MoMo app | +12 pts | Medium |
| 2 | Single-page checkout (vs 3 steps) | +9 pts | Medium |
| 3 | Pre-filled phone number | +6 pts | Low |
| 4 | Retry banner after timeout | +8% recovered | Low |
| 5 | Show fees upfront | +4 pts | Low |
| 6 | Automatic operator detection | +3 pts | Medium |
The deep-link, which opens the payment app directly instead of a USSD menu, is by far the number-one lever on smartphones.
Mini case study
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Ibrahim, a restaurateur in Abidjan, receives 1,200 online orders per month at an average basket of 9,000 FCFA, a potential of 10,800,000 FCFA. His checkout converts at 60%, so he collects 6,480,000 FCFA. By moving to a single-page checkout with deep-link (conservative combined gain of +15 points), he reaches 75% completion: 8,100,000 FCFA collected, 1,620,000 FCFA more per month without spending a single franc more on advertising.
FAQ
Why does my mobile money completion stay under 65%?
In most cases the leak sits at the authorization step: unstable USSD redirect or timeout with no way to retry. A deep-link into the app plus a retry banner often recover 10-15 points on their own.
Does deep-linking work on all phones?
It works on smartphones that have the operator app installed, roughly 78% of the fleet. For the remaining 22% on basic phones, keep a USSD fallback so you lose no one.
Should fees be shown before or after payment?
Before, always. Hiding shipping fees until the last step drives 18% abandonment on the first screen; showing them from the cart cuts that drop-off by about 4 points.
How long to implement these fixes?
A single-page checkout with deep-link, pre-fill and retry usually ships in 5-10 development days, an investment often repaid within the first month by recovered sales.
Let's talk about your project. We audit your mobile money checkout and ship the highest-ROI fixes. 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.
