The verdict in three sentences
An SME's DSO (average days to pay) often runs between 45 and 75 days, choking cash flow. An automated reminder sequence (T+1 reminder, firm follow-up T+7, formal notice T+15) with an embedded payment link improves recovery by 30 to 40 %. The cost is tiny — around 25 FCFA per SMS — and you no longer chase a single client by hand.
Building an effective reminder sequence
The classic mistake is reminding too late and irregularly. An automated sequence fires messages at the right moments, on the right channels, each time with a payment link to pay in one click via Wave or Orange Money. The tone rises gradually, from a courteous reminder to a formal notice.
| Day | Channel | Tone | Key element |
|---|---|---|---|
| T+1 | SMS/WhatsApp | Courteous reminder | Payment link |
| T+7 | WhatsApp + email | Firm follow-up | Penalty mentioned |
| T+15 | Email + call | Formal notice | Late penalties |
| T+30 | Formal letter | Pre-litigation | Payment plan offered |
Late penalties are configurable and encourage prompt payment.
Cash-flow impact: 10 invoices of 250,000 FCFA
Total outstanding: 10 × 250,000 = 2,500,000 FCFA.
| Scenario | Average DSO | Cash collected by T+30 | Reminder cost |
|---|---|---|---|
| No reminders | ~60 days | ~1,000,000 FCFA (40 %) | 0 FCFA |
| Manual reminders | ~45 days | ~1,500,000 FCFA (60 %) | Manager's time |
| Automated reminders | ~30 days | ~2,100,000 FCFA (84 %) | ~5,000 FCFA (SMS) |
Automated reminders recover roughly +30 to 40 % of cash sooner, for a cost of a few thousand FCFA. 2026 estimate, varying by your client portfolio.
Referral program: get your services recommended
Do you manage your recovery well and know SMEs struggling with unpaid invoices? Become a Kolonell referral partner: introduce a client, we equip their collection and reminders, and you earn a commission. The 2026 rates:
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| Referred project type | Sale commission | Recurring |
|---|---|---|
| Showcase website | 15 % | 5 % recurring |
| E-commerce | 12 % | — |
| Marketplace | 10 % | — |
| Institutional | 8 % | — |
A simple 500,000 FCFA showcase site you refer earns you 75,000 FCFA immediately, plus 5 % on recurring services (maintenance, SEO).
Mini case study
Aïssatou, head of a cleaning company in Dakar, bills 18 B2B clients, monthly outstanding 4,500,000 FCFA, initial DSO of 62 days. Activating an automated reminder sequence (SMS at 25 FCFA + WhatsApp + Wave link), her DSO drops to 34 days. Concretely, she collects about 1,800,000 FCFA more in the very first transition month, for a reminder cost under 10,000 FCFA. The time she spent chasing (4 h/week) is now zero.
FAQ
What is DSO and why reduce it? DSO is the average time between invoice and payment, often 45 to 75 days for an SME. Reducing it immediately frees up cash.
How much does an automated reminder cost? An SMS costs about 25 FCFA, WhatsApp and email almost nothing. Over 10 invoices, the full sequence costs a few thousand FCFA.
How much does recovery improve? Usually 30 to 40 % sooner, because the client gets regular reminders with an immediate payment link.
How do I become a Kolonell referral partner? Introduce a client: you earn 15 % on a showcase site (+ 5 % recurring), 12 % e-commerce, 10 % marketplace, 8 % institutional. Contact us to join the program.
Can automated reminders include penalties? Yes, late penalties are configurable and appear from the firm follow-up (T+7), which clearly speeds up payment.
Let's talk about your project. We automate your multi-channel reminders with Wave/OM payment links to crash your DSO — and we welcome referral partners. 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.
