The verdict in three sentences
Getting an existing customer to buy again costs about 5 times less than acquiring a new one, yet most stores invest only in acquisition. A simple points program (1 point per 100 FCFA spent) combined with automated WhatsApp nudges raises purchase frequency by 15 to 30 %. The WhatsApp channel, with open rates above 90 %, reactivates 25 to 40 % of dormant customers at near-zero cost.
Three loyalty mechanics compared
Points, cashback or VIP status: each mechanic has a different cost and retention effect. You choose based on the sector's margin and purchase frequency.
| Mechanic | Cost to the store | Expected retention | Best for |
|---|---|---|---|
| Points (1/100 FCFA) | 1 to 3 % of revenue | +15 to 25 % | Frequent purchases |
| Cashback wallet | 3 to 5 % of revenue | +20 to 30 % | High order value |
| VIP status (tiers) | Low (non-cash perks) | +10 to 20 % | Premium brands |
| Referral | 2,000 FCFA/referral | +acquisition | Active communities |
| Birthday / nudge | Near zero | +reactivation | All |
WhatsApp nudges, the reactivation engine
WhatsApp is the dominant channel in West Africa: opened by almost everyone, it outperforms email and SMS. Automated, it costs a few FCFA per message.
| Nudge scenario | Trigger | Reactivation rate | Cost/message |
|---|---|---|---|
| Abandoned cart | 1h after abandonment | 20 to 30 % | ~15 FCFA |
| Dormant customer | 45 days without purchase | 25 to 40 % | ~15 FCFA |
| Points expiring soon | 7 days before expiry | 30 to 45 % | ~15 FCFA |
| Favorite product restock | Back in stock | 15 to 25 % | ~15 FCFA |
| Birthday offer | Birthday date | 20 to 35 % | ~15 FCFA |
Mini case study
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Fatou sells fashion accessories online in Nairobi with 500 customers, of which 150 are dormant (45 days without a purchase). She sends a WhatsApp nudge to the 150 dormant customers with a points bonus: cost 150 × 15 = 2,250 FCFA. At a 30 % reactivation rate, 45 customers return and spend on average 18,000 FCFA, i.e. 810,000 FCFA in revenue. Return on investment: over 350 times the outlay. The points program keeps her profitable over time, not just on a single push.
FAQ
What is a point really worth? At 1 point / 100 FCFA and 100 points = 500 FCFA off, you return 1 % of revenue. That's far below the acquisition cost of a new customer (often 5 to 10 % of the basket in ads).
Is WhatsApp allowed for these nudges? Yes, provided you have customer consent (opt-in at checkout) and use the official API. Transactional messages and consented nudges go through without blocking risk.
Which reward tier works best? A first tier reachable in 3 to 4 purchases keeps motivation high. Too far, the customer gives up; too close, the reward costs too much.
Points or cashback wallet? Cashback (reusable credit) retains high baskets better, but costs 3 to 5 % of revenue. Points suit frequent, low-basket purchases.
CTA
Let's talk about your project. We set up your points program and automated WhatsApp nudges, connected to your store and your mobile money. 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.
