The verdict in three sentences
A custom ERP/CRM connector kills double data entry between your ERP and HubSpot and hardens your sales data. The 2026 budget splits into an API scoping at 3,000-6,000 EUR and a connector at 10,000-30,000 EUR, depending on how many objects you sync. Support of 500 to 1,200 EUR/month keeps the synchronization resilient, and it should run in under 15 minutes.
iPaaS vs custom connector: what to choose in Singapore
The IT director has two paths: an iPaaS platform (Make, Workato, n8n) or a custom-built connector. iPaaS starts fast but its cost climbs with volume; custom costs more to build but becomes cheaper at scale. 2026 order of magnitude:
| Criterion | iPaaS (Make/Workato) | Custom connector |
|---|---|---|
| Setup | 2,000-8,000 EUR | 10,000-30,000 EUR |
| Monthly cost | 80-1,500 EUR | support 500-1,200 EUR |
| Cost vs volume | grows with tasks | stable |
| Complex business logic | limited | full |
| Error recovery | basic | queue + replay |
| Vendor lock-in | strong | none |
| Lead time | 2-4 weeks | 5-10 weeks |
Simple rule: under 5,000 operations/month with standard flows, iPaaS is enough; beyond that, or with proprietary business rules, custom pays off.
Cost by number of objects and flows
A connector's price depends mostly on the number of objects (contacts, companies, quotes, invoices, products) and the sync direction. 2026 estimate:
| Scope | Synced objects | Budget |
|---|---|---|
| Minimal | contacts + companies | 10,000-15,000 EUR |
| Standard | + quotes + invoices | 15,000-22,000 EUR |
| Extended | + products + stock | 22,000-30,000 EUR |
| Full two-way | all objects, both ways | 26,000-30,000 EUR+ |
| Monthly support | monitoring + changes | 500-1,200 EUR |
Two-way sync (each system can edit the record) costs more because it requires conflict handling and a reference timestamp.
Handling sync errors
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A serious connector does not just copy data: it handles failures. You plan a replay queue for failed operations, alerts on discrepancies, an audit log of every flow, and a conflict-resolution rule (last write wins, or ERP priority). Without it, a HubSpot API down for 10 minutes can corrupt hundreds of records.
Mini case study
Thomas, IT director of a 120-employee industrial SMB in Singapore, manages 9,000 contacts and 400 quotes/month between the ERP and HubSpot. His reps re-enter every quote: 3 minutes x 400 = 20 hrs/month. A custom connector at 19,000 EUR (support 800 EUR/month) removes that entry and hardens the pipeline. Gain: 20 hrs/month, about 9,600 EUR/year, plus the end of billing discrepancies. Payback in roughly 20 months, excluding data-quality gains.
FAQ
How long does a custom sync last? Well built, it runs for years; support (500-1,200 EUR/month) absorbs vendor API changes.
iPaaS or custom for the ERP? Under 5,000 operations/month with simple flows, iPaaS suffices; complex logic or high volumes, custom pays off.
What if an API goes down? The replay queue keeps operations and re-runs them automatically; no data is lost.
Realistic lead time? Count 5 to 10 weeks: 1-2 for API scoping, the rest in development and testing.
Is the sync real-time? It is near real-time: target under 15 minutes, often 1 to 5 minutes depending on available webhooks.
Let's scope your project. Tell us your tools (ERP, HubSpot...), the objects to sync and the volumes: we decide between iPaaS and custom and price the 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.
