How to choose an ERP for your SME: 7 criteria to get it right

By Hassan Es-SoufySeptember 27, 20265 min read

Spreadsheets that contradict each other, stock that is never up to date, invoices typed in by hand, an accountant waiting for paperwork… At some point, every SME faces the ERP question. But between open-source solutions, proprietary software and vendor promises, deciding how to choose an ERP can quickly become a headache. Here are the 7 criteria that really matter, and the traps to avoid. (see the definition of enterprise resource planning)

What exactly is an ERP?

An ERP (Enterprise Resource Planning) system is software that brings the core functions of your business into one tool: sales, purchasing, stock, invoicing, accounting, and sometimes production, HR or CRM. Every team works on the same data in real time, instead of juggling separate files.

5 signs it is time for an ERP

You re-enter the same information in several files or tools.
You do not know your real stock without counting it.
Preparing invoices or the monthly close takes days.
You struggle to see which products or customers are truly profitable.
Your business is growing, but your tools are not keeping up.

If two or three of these sound familiar, an ERP will probably save you time and give you visibility. It is one of the key benefits of digital transformation for an SME.

How to choose an ERP: the 7 essential criteria

1. Coverage of your business needs

Start by listing your key processes: quotes, orders, purchasing, stock, invoicing, accounting, production… A good ERP should cover most of these out of the box, without heavy custom development. Be wary of generic demos: ask to see your own use case.

2. Ease of use

An ERP your team finds complicated will not be used, and the spreadsheets will come back. Favour a clear, mobile-friendly interface, and test it with the people who will use it every day.

3. Modularity and scalability

There is no need to deploy everything on day one. Choose a modular solution: start with sales, stock and invoicing, then add accounting, CRM or production when the business is ready.

4. Fit with your local context

Chart of accounts, VAT, invoice formats, languages, currencies: the ERP must comply with the rules of the countries where you operate. For an SME working across borders, multi-currency and multilingual support are often essential.

5. Integrations

Your ERP should talk to your other tools: e-commerce site, bank, payroll software, messaging, AI tools. Check the available connectors and whether there is an open API.

6. Total cost, not just the licence price

The real budget includes licences or subscription, hosting, configuration, data migration, training and maintenance. A “free” ERP can become expensive if it needs a lot of customisation; a higher subscription can pay off if it goes live quickly.

7. Support and guidance

Software is not everything: success depends mostly on the quality of implementation and training. Choose an integrator who takes the time to understand your business, speaks your language and stays available after go-live.

Open-source or proprietary ERP?

Open-source ERPs (such as Odoo Community or Dolibarr) have no licence fees, are highly customisable and avoid vendor lock-in. They do, however, require a skilled integrator for setup and maintenance.

Proprietary or subscription ERPs (such as Odoo Enterprise, Sage, Microsoft Dynamics 365 Business Central or SAP Business One) offer vendor support and advanced features, in exchange for a yearly subscription or licences.

For most SMEs, the right answer is not ideological: it is the one that covers your needs at the most reasonable total cost over 3 to 5 years.

The best ERP is not the one with the most features: it is the one your team adopts, and that truly reflects the way you work.

Mistakes to avoid

Choosing software from a demo, without having written down your needs.
Trying to copy every old spreadsheet instead of improving processes.
Underestimating data migration (customers, products, stock).
Neglecting user training.
Launching everything at once instead of working in stages.

Our method for a successful ERP project

Process audit: understand how you work today.
Solution choice: compare 2 or 3 options suited to your size and budget.
Configuration and data migration: a ready-to-use ERP with your real customers and products.
Training and go-live: support your team through the first weeks.
Continuous improvement: add modules and automations over time.

This is the approach we apply to every ERP implementation at Axis Digital Transformation.

How to choose an ERP: key takeaways

Knowing how to choose an ERP starts with your processes, not with the software.
The best way to choose an ERP is to compare 2 or 3 solutions on your real use cases.
Learning how to choose an ERP also means planning data migration and team training from day one.

Frequently asked questions

How to choose an ERP for an SME?

To choose an ERP, first list your key processes, then compare solutions on 7 criteria: coverage of needs, ease of use, modularity, fit with local context, integrations, total cost and quality of support.

Which ERP is best for a small business?

A small business should favour a simple, modular ERP such as Odoo or Dolibarr, starting with sales, stock and invoicing, then adding modules as it grows.

How long does an ERP implementation take?

For an SME, a first scope (sales, stock, invoicing) can often go live within a few weeks. A broader project, with production or full accounting, takes longer.

Is an open-source ERP reliable?

Yes, as long as it is properly implemented, hosted and maintained. Solutions such as Odoo Community or Dolibarr are used by many businesses worldwide.

In short, knowing how to choose an ERP starts with understanding your needs, then selecting the simplest solution that meets them, with a partner able to support you over time.

Where does your business stand?

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