The verdict in three sentences
On a mobile-first store in West Africa, cart abandonment mostly comes from a checkout that's too long: every extra field costs about 10% of conversion on a 3G connection. In 2026, an express 3-tap checkout (phone number + amount + mobile money OTP) can lift conversion from 40% to 58%. The rule is brutal: anything not essential to the payment must disappear from the funnel.
Long vs express checkout: the difference shows step by step
Let's compare a classic 6-field funnel with an express checkout. Conversion degrades at each extra step, especially on 3G where every load counts.
| Step | Long checkout (6 fields) | Express checkout (3 taps) |
|---|---|---|
| Overall completion rate | 40% | 58% |
| Number of fields | 6 | 2 |
| Median time | 90-120 s | 25-40 s |
| Page weight | 800-1500 KB | 150-350 KB |
| 3G impact | Slow load, exits | Smooth, few exits |
| Screens before payment | 3-4 screens | 1 screen |
The express checkout asks only for the essentials: the mobile money number, the pre-filled amount, then validation via the operator's OTP. Address and customer details are collected after payment, if needed.
The concrete levers that recover sales
Each optimization has a measurable gain. Combined, they explain the 18-point conversion gap.
| Lever | Conversion gain (ballpark) | Why |
|---|---|---|
| Remove account creation | +8 to 12% | The account is friction, not required to pay |
| Pre-fill amount and operator | +4 to 7% | Less typing, fewer errors |
| Trim the page to < 350 KB | +5 to 9% | Fast 3G load |
| Payment on 1 screen | +6 to 10% | Fewer drop-offs between screens |
| Single clear "Pay with Wave" button | +3 to 5% | Zero hesitation |
Mandatory account creation is the number-one conversion killer: replace it with a simple phone number, which also serves as the customer identifier.
Mini case study
Ama sells accessories in Accra, 1,000 cart visits/month, average basket 22,000 FCFA. With her old 6-field checkout and account creation, conversion was 40%, i.e. 400 orders and 8,800,000 FCFA/month. Kolonell rebuilds the funnel as a 3-tap express checkout (page < 300 KB, number + OTP, pre-filled amount). Conversion rises to 58%, i.e. 580 orders: +180 orders/month, i.e. +3,960,000 FCFA/month in revenue, for a rebuild billed around 350,000 FCFA. It pays for itself in the first week.
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Become a Kolonell referral partner
Do you know merchants whose checkout is losing sales? Refer them and earn a commission through the Kolonell referral partner program. Rates are clear and recurring where usage allows.
| Referred project type | Partner commission |
|---|---|
| Showcase website | 15% + 5% recurring |
| E-commerce store | 12% |
| Marketplace | 10% |
| Institutional project | 8% |
A single referred e-commerce project at 2,000,000 FCFA earns you 240,000 FCFA. No commitment: you introduce, we deliver, you get paid.
FAQ
Do I really need to remove account creation? Yes, at checkout. The mobile money phone number already identifies the customer; the account can be offered after purchase. This usually recovers 8 to 12% of conversion.
How many fields at most? Aim for 2 active fields at checkout: the mobile money number and the OTP. Amount, operator and product are pre-filled. Each extra field costs about 10% of conversion on 3G.
Does express checkout work beyond mobile money? The principle (as few fields as possible) applies everywhere, but the mobile money OTP is what makes the funnel this short. For cards, keep minimum fields and avoid account creation.
How do I measure the gain? Track the checkout completion rate before/after and the median time. Going from 40% to 58% on 1,000 visits means 180 more orders per month.
Is a page under 350 KB realistic? Yes, by optimizing images (WebP), limiting scripts and loading the essentials first. It's indispensable for smoothness on 3G.
Let's talk about your project. Kolonell rebuilds your mobile money checkout into 3 taps, optimized for 3G, and measures the conversion gain. 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.

