The verdict in three sentences
On mobile and 3G connections, every extra checkout step costs sales: switching from a multi-step funnel to a one-page checkout cuts abandonment by roughly 35 % in 2026. Completion time drops from 2 minutes to 45 seconds and mobile conversion climbs from 71 % to 88 %. The key: reduce to 4 fields, pre-fill the phone number and trigger Wave/OM payment without a page reload.
Multi-step vs one page: the figures
The classic 4- or 5-step funnel was designed for desktop and bank cards. On mobile money, every screen is a chance to abandon, especially when the network lags. Here is the direct comparison observed on West African stores.
| Metric | Multi-step checkout | One-page checkout |
|---|---|---|
| Number of screens | 4 to 5 | 1 |
| Fields to fill | 9 to 12 | 4 |
| Average completion time | ~2 min | ~45 s |
| Abandonment rate | 42 % | 27 % |
| Mobile conversion | 71 % | 88 % |
| Page reloads | 4 to 5 | 0 |
| Total loaded weight | 600 KB+ | < 200 KB |
Cutting the number of reloads is decisive on 3G: each reload adds 2 to 6 seconds of latency, and it is precisely in those dead moments that the customer closes the tab.
The 4 fields that are enough
A mobile money checkout doesn't need the 12 fields of a classic form. You can derive most of the information or request it after payment. Here is the trade-off between friction and data collected.
| Field | Essential? | Reduction tip |
|---|---|---|
| Phone number | Yes | Pre-filled, also used for payment |
| Name | Yes | Single combined field |
| Delivery address | Yes | Auto-complete district + pickup point |
| Operator choice (Wave/OM) | Yes | Visual buttons, no dropdown |
| No | Optional, requested after payment | |
| Postal code | No | Not needed in Senegal |
| Account creation | No | Guest checkout by default |
Going from 9-12 fields to 4 alone gains about 15 mobile conversion points. The rest comes from removing reloads and from pre-filling.
Mini case study
Ibrahim runs a phone accessories store in Abidjan, 1,200 checkout sessions per month, average basket 12,000 FCFA. With his old 5-step funnel, mobile conversion was 71 %, i.e. 852 orders. Switching to a one-page checkout with 4 fields, conversion rises to 88 %, i.e. 1,056 orders. That is 204 more orders per month, or 2,448,000 FCFA of additional revenue, for a redesign cost recouped in less than a week of operation.
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
FAQ
Does one-page checkout really work on 3G?
Yes, provided the page stays under 200 KB and avoids reloads. Under those conditions, 3G conversion nearly matches 4G, with a completion time around 45 seconds.
Should you force account creation?
No. Guest checkout by default works best: forced account creation loses 10 to 20 % of buyers. Offer account creation after a successful payment.
Can you keep multi-step for large baskets?
Rarely needed. Even for high baskets, one page stays superior; you can simply add a clear summary and reassurance elements on the same page.
Is pre-filling the number reliable?
Yes when the customer is known or returning. For a new customer, a simple field pre-formatted with the +221 or +225 code speeds entry and reduces number errors.
How long to migrate to a one-page checkout?
Allow 1 to 2 weeks depending on the platform. The conversion gain is measurable from the first week live.
Let's talk about your project. We design a 3G-optimized one-page checkout, 4 fields, with Wave/OM payment and no reload. 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.
