The verdict in three sentences
In 2026, a bidirectional ERP-CRM connector costs between 8,000 and 25,000 EUR excl. tax, depending on the number of synchronized objects and the complexity of matching rules. It eliminates double entry (15 to 30 hours/month saved) and makes data reliable between your two key systems. The choice is between an iPaaS platform (fast, monthly subscription) and a custom connector (deep integration, solution ownership).
How much does an ERP-CRM connector cost in 2026
Price depends on sync direction (one- or two-way), the number of objects (customers, products, orders, invoices) and frequency (batch or real-time).
| Connector type | Synced objects | 2026 cost (EUR excl. tax) | Timeline |
|---|---|---|---|
| One-way synchronization | 1-2 objects | 8,000 - 12,000 | 3-4 wks |
| Standard bidirectional | 2-3 objects | 12,000 - 17,000 | 4-6 wks |
| Bidirectional + business rules | 3-4 objects | 17,000 - 21,000 | 6-8 wks |
| Real-time + conflict handling | 4+ objects | 21,000 - 25,000 | 8-10 wks |
Plan for annual maintenance of 1,500 to 5,000 EUR excl. tax (API changes, monitoring, mapping fixes).
iPaaS vs custom connector
An iPaaS platform (subscription-based integration solution) is ideal for standard flows. Custom wins as soon as business rules are specific or volume makes the subscription too expensive.
| Criterion | iPaaS (subscription) | Custom connector |
|---|---|---|
| 2026 initial cost | 3,000 - 8,000 EUR | 12,000 - 25,000 EUR |
| Monthly cost | 300 - 1,200 EUR | 0 (self-hosted) |
| Setup timeline | 2-4 weeks | 4-10 weeks |
| Complex business rules | Limited | Full |
| Cost at high volume | Rising | Fixed |
| Annual maintenance | Included | 1,500 - 5,000 EUR |
Practical rule: iPaaS below 600 EUR/month of flows; custom beyond that, or when business logic exceeds what iPaaS can handle.
Mini case study
Marc, operations director of an industrial mid-sized company in Bordeaux (140 employees), has an ERP and a CRM that don't talk to each other. Two people re-key orders and customer records from one system to the other: 25 hours/month in total, loaded cost 40 EUR/hour = 1,000 EUR/month, with frequent data discrepancies.
He commissions a real-time bidirectional connector for 19,000 EUR excl. tax, maintenance 250 EUR/month. Double entry disappears: 25 hours/month freed = 1,000 EUR/month, plus the end of stock and billing errors (estimated at 500 EUR/month). Monthly gain: 1,500 EUR, monthly cost 250 EUR. Net gain: 1,250 EUR/month. ROI on the initial investment: about 15 months, then recurring net benefit and finally reliable data.
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
FAQ
Do I need a bidirectional or one-way connector?
One-way if a single source is authoritative (e.g. ERP to CRM): 8,000 to 12,000 EUR. Bidirectional if both systems are updated: 12,000 to 25,000 EUR, with conflict handling.
iPaaS or custom in 2026?
iPaaS below 600 EUR/month of flows and for standard cases. Custom beyond that, or when business rules are specific: the subscription often ends up more expensive than development over 2-3 years.
How long to synchronize ERP and CRM?
A one-way sync ships in 3 to 4 weeks. A real-time bidirectional connector with conflict handling takes 8 to 10 weeks.
What happens if an API changes?
That's the role of maintenance (1,500 to 5,000 EUR/year): adapting the connector to API changes. Without it, a flow can break and block synchronization.
How much time do I really save?
Between 15 and 30 hours/month depending on the double entry removed, not counting the end of data errors, often costlier than the time itself.
Let's scope your project. Tell us your two systems (ERP, CRM), the objects to sync and the sync direction, and we will price the right connector. 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.
