The verdict in three sentences
Unifying your business tools by API starts with a flow audit at 2,000-5,000 EUR, then iPaaS integrations (Make/Zapier + development) at 8,000-25,000 EUR and custom connectors at 4,000-12,000 EUR each in 2026. The run runs from 100 to 600 EUR/month depending on operation volume and iPaaS licences. The concrete gain: -20 hours/month of copy-paste and unified data across CRM, billing, support and operational tools.
iPaaS or custom connectors: the comparison
In New York, an operations director often juggles CRM, billing, support, email, spreadsheet and project tools that don't talk to each other. Two approaches: iPaaS platforms (Make, Zapier, n8n) for standard scenarios, and custom development for complex or high-volume cases.
| Criterion | iPaaS (Make/Zapier) | Custom connector |
|---|---|---|
| Setup cost | 8,000 - 25,000 EUR | 4,000 - 12,000 EUR/each |
| Monthly run | 100 - 400 EUR (licences) | 100 - 600 EUR (hosting) |
| Timeline | 4-8 weeks | 3-6 weeks/connector |
| Volume supported | Medium (quotas) | High |
| Maintenance | Low | Moderate |
| Ideal case | Standard scenarios | Complex business logic |
Costs by project stage
| Stage | Scope | Budget | Timeline |
|---|---|---|---|
| Flow audit | Mapping, prioritisation, targets | 2,000 - 5,000 EUR | 1-2 wks |
| iPaaS integrations | 5-10 orchestrated scenarios | 8,000 - 25,000 EUR | 4-8 wks |
| Custom connectors | Complex/high-volume APIs | 4,000 - 12,000 EUR/each | 3-6 wks |
| Monitoring/alerting | Logging, replay, dashboards | 2,000 - 5,000 EUR | 1-2 wks |
| Monthly run | Licences, hosting, supervision | 100 - 600 EUR/mo | ongoing |
Overall timelines run 4 to 10 weeks. The rule: start with the audit, first unify the 3-4 flows costing the most time, then extend. A mix of iPaaS (standard) + custom (complex) is often the best cost/robustness ratio.
Mini case study
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
Julian is operations director of a B2B services agency in New York, 40 staff, 9 SaaS tools. Before integration, teams manually copied data between CRM, billing and project tool: about 25 hours/month combined of copy-paste, with omissions and inconsistent data across tools.
He commissions a 3,500 EUR audit, then 16,000 EUR of integrations (iPaaS for 6 standard scenarios + 1 custom connector) and 250 EUR/month of run. Copy-paste drops -20 hours/month. At a loaded 32 EUR/hour, the saving reaches 640 EUR/month, nearly 7,700 EUR/year; added to data reliability (fewer billing and reporting errors), the whole pays back in about 2.5 years — but the steering value is immediate.
FAQ
Do we really need to pay for an audit before integrating? Yes: a 2,000-5,000 EUR audit avoids connecting useless flows and undersizing the architecture. It often pays for itself just by prioritising the 3-4 most time-consuming flows.
iPaaS or custom, which to choose? iPaaS for standard scenarios (fast, low maintenance); custom when business logic is complex or volume is high, beyond platform quotas. A mix is common.
How much is a custom connector? Between 4,000 and 12,000 EUR per connector depending on target API complexity, authentication and data transformation logic.
Why is the 600 EUR/month run so high? At high volume, iPaaS licences and connector hosting, plus monitoring and failure replay, add up. It's the trade-off for flows that don't break silently.
How fast do we see gains? The first unified flows produce gains as early as week 4-6. The full project (5-10 scenarios) deploys in 4 to 10 weeks depending on the number of connectors.
Let's scope your project. List your SaaS tools and the 3-4 most time-consuming flows, and we'll frame a budget between 2,000 (audit) and 25,000 EUR (integrations). Detailed quote within 48 h. 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.
