The verdict in three sentences
Connecting your e-commerce to your ERP in real time costs, in Toronto in 2026, between 10,000 and 35,000 EUR, live in 4 to 10 weeks. The immediate gain: no more overselling of out-of-stock items, reliable lead times and order errors cut by 20-40%. An iPaaS middleware at 500-2,000 EUR/month speeds setup but creates dependency; a custom connector handles your business cases better and belongs to you.
What gets synced, and in which direction?
An e-commerce/ERP integration covers four main flows, each with a direction and frequency. Stock and prices flow down from ERP to store; orders and customers flow up from store to ERP. Real time is only essential for fast-moving stock.
| Flow | Direction | Recommended frequency | Stake |
|---|---|---|---|
| Stock | ERP to store | Real time / minutes | Avoid overselling |
| Prices / customer tariffs | ERP to store | Hourly / real time | Pricing consistency |
| Orders | Store to ERP | Real time | Sales-admin without rekeying |
| Customers / accounts | Bidirectional | Event-based | Up-to-date B2B accounts |
| Statuses / shipments | ERP to store | Hourly | Reliable customer info |
| Invoices | ERP to store | Event-based | B2B customer area |
Custom build or iPaaS middleware?
| Criterion | Custom connector | iPaaS middleware |
|---|---|---|
| Initial cost | 10,000-35,000 EUR | 3,000-10,000 EUR setup |
| Recurring cost | Maintenance 10-15%/year | 500-2,000 EUR/month |
| Complex business cases | Finely handled | Depends on available connectors |
| Vendor dependency | None | High |
| Delivery time | 4-10 weeks | 2-6 weeks |
| Ownership | Full | Subscription |
Middleware fits if your ERP and store have standard connectors and simple rules. Custom wins as soon as you have specific business rules (multi-warehouse allocation, per-customer pricing, unusual sales units).
Mini case study
Sofiane, e-commerce manager at a spare-parts distributor in Toronto, suffers 6% of orders cancelled for undetected stock-outs. On 9,000 orders/year at 180 EUR average margin, that is ~97,000 EUR of lost margin plus sales-admin dispute handling. He invests 24,000 EUR in a custom ERP connector with real-time stock. Overselling drops below 0.5%, recovering roughly 80,000 EUR of margin/year and 0.7 FTE of sales-admin. Payback in under 4 months.
FAQ
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What does an e-commerce/ERP integration cost in Toronto in 2026?
Between 10,000 and 35,000 EUR for a custom connector, depending on the number of flows and rule complexity. An iPaaS middleware costs 500 to 2,000 EUR/month plus setup.
Is real time really necessary?
For fast-moving stock, yes, to avoid overselling. For prices or statuses, hourly sync is often enough and cheaper.
How long to go live?
Between 4 and 10 weeks depending on the number of flows, the quality of the ERP APIs and the volume of data to migrate.
Middleware or custom: which to choose?
Middleware if your systems have standard connectors and simple rules. Custom as soon as you have specific business cases or want to avoid dependency and monthly fees.
What ROI to expect?
Ending overselling and removing rekeying cuts errors by 20-40% and frees sales-admin time; ROI is often reached in under 6 months at medium volume.
Let's scope your project. Tell us your ERP, platform and critical flows: we size a real-time integration at the right level, 10,000-35,000 EUR. 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.