Dockia Blog
Custom ERP vs standard: when to build bespoke and when not to
2026-02-18 • 9 min
Technical and economic analysis to decide between a standard ERP (SAP, Odoo, Dynamics) and a custom ERP: process criteria, TCO, and scalability for mid-sized companies.
The choice between a standard ERP and a custom ERP is not a technology decision — it's strategic: it depends on your process uniqueness, 5-year TCO, and the speed at which your operations evolve.
- •A standard ERP (SAP, Odoo, Dynamics) is ideal for universal processes like accounting or HR, but falls short when differentiating business processes don't fit its data model.
- •A custom ERP makes sense when adapting the standard costs more than building from scratch, or when company processes are so specific that standard ERP customizations end up being the real ERP.
- •The 5-year TCO of a standard ERP includes annual licenses, add-on modules, limited customization cost, and time lost adjusting processes to the tool instead of the other way around.
Case Study
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FAQ
When is it better to develop a custom ERP than to buy a standard one?
When the standard ERP customization cost exceeds 40% of the total project cost, when core business processes don't fit the standard data model, or when transaction volume makes the per-user license model unworkable.
How much does it cost to develop a custom ERP for a mid-sized company?
A modular custom ERP for a mid-sized company starts with a scoping consultancy (from €500) and a first core module sprint (from €2,000), scaling in phases based on real needs. Total cost ranges from €15,000 to €80,000 depending on complexity.
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