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How to choose an ERP in 2026: a buyer's framework for SMEs

A step-by-step framework for choosing an ERP: scoping requirements, comparing Odoo, custom and large ERPs, estimating total cost and avoiding the usual failure points.

By INTELLIA Solutions Team · Reviewed by INTELLIA Engineering Team

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2 min read

Short answer

To choose an ERP, list the ten business processes that matter most, score each candidate system on how well it handles them without customization, compare five-year total cost (licenses, implementation, hosting, support), and check the implementation partner as carefully as the software. For most SMEs, a modular platform like Odoo fits better than a custom build or a large enterprise suite.

How to choose an ERP system: step by step

  1. 1

    Map your core processes

    Document order-to-cash, procure-to-pay, inventory, production, HR and financial close as they work today.

  2. 2

    Prioritize requirements

    Mark each requirement as must-have, important or nice-to-have, and identify what truly differentiates your business.

  3. 3

    Shortlist three systems

    Choose candidates that fit your size, industry and budget, for example Odoo, a mid-market ERP and a custom option.

  4. 4

    Run scripted demos

    Ask each vendor to demonstrate your processes with your sample data, not their standard demo.

  5. 5

    Compare five-year total cost

    Include licenses, implementation, customization, hosting, support, upgrades and internal staff time.

  6. 6

    Check partner references

    Speak to clients of the implementation partner in a similar industry and size.

Why ERP selection goes wrong

Most ERP regrets start before any software is installed. Companies compare feature checklists, pick the system with the most ticks or the lowest license price, and only discover during implementation that their real processes do not fit. By then, the budget is committed and customization becomes the only way forward.

A better approach starts from processes and total cost.

Step 1: Describe processes, not features

Write down how work actually flows through the business. For most companies, six process families cover the core:

Process Key questions
Order to cash How are quotes, orders, deliveries, invoices and collections handled?
Procure to pay How are purchases requested, approved, received and paid?
Inventory How many warehouses? Batches, serials, expiry dates?
Production Make to stock or to order? Bills of materials? Subcontracting?
People Attendance, payroll, leave, expenses?
Record to report How long is month-end close? What reports does the board need?

For each, note what works, what hurts and what is unique to you.

Step 2: Separate differentiators from standard practice

Most of what a business does, such as invoicing, paying suppliers and counting stock, follows standard practice that every ERP supports. A few processes are genuinely different and give you an edge: a unique pricing model, a specialized production step, a regulatory requirement. Customize only the differentiators. Everything else should adapt to the ERP's standard way of working.

Step 3: Compare the realistic options

Option Strengths Weaknesses Best fit
Odoo (Community or Enterprise) Modular, affordable, large ecosystem, fast to deploy Quality depends heavily on partner; heavy customization complicates upgrades SMEs and mid-market companies
Other mid-market ERP Strong in specific industries Licensing cost; fewer local partners in some regions Companies with a specific industry fit
Large enterprise ERP Depth, global compliance High cost and long timelines Large multinationals
Custom-built ERP Exact fit Expensive to build and maintain; key-person risk Rare, highly unusual operations

Step 4: Calculate five-year total cost

License price is often less than half of the real cost. Include:

  • Licenses or subscriptions for the users you will actually have in year three.
  • Implementation: discovery, configuration, customization, data migration, training.
  • Integrations with eCommerce, banks, telephony, WhatsApp, HR or tax systems.
  • Hosting in the cloud or on-premises, including backups.
  • Support and upgrades, typically an annual cost.
  • Internal time: key users spend significant time in workshops, testing and training.

Step 5: Evaluate the partner, not just the product

The same ERP can succeed brilliantly or fail badly depending on who implements it. Ask partners:

  • How many similar projects, in your industry and size, have they delivered?
  • Who exactly will work on your project, and will they stay?
  • How do they manage scope changes?
  • What does support look like after go-live?
  • Can you speak to two references?

Step 6: Plan a phased rollout

Big-bang ERP launches concentrate risk. A phased plan, for example finance and inventory first, then sales and purchasing, then manufacturing and HR, delivers value earlier and lets users adapt. Each phase should end with the system in production use.

Where INTELLIA fits

We implement and extend Odoo ERP and connect it with our own products where they fit better than a generic module, such as RAINMAKER HRMS for Pakistani payroll and ASSURA for audit. Before any ERP decision, read custom software vs off-the-shelf to understand the build-or-buy trade-off.

Frequently asked questions

What is the best ERP for small businesses?

There is no single best ERP. For many small and mid-sized businesses, modular platforms such as Odoo offer a good balance of cost, breadth and flexibility. The right choice depends on your processes, industry, budget and the quality of the local implementation partner.

How much does an ERP implementation cost?

Costs depend on modules, users, entities, integrations, data migration and customization. A focused SME rollout costs far less than a multi-country enterprise program. Ask for a fixed-price first phase after a discovery workshop rather than a single upfront number.

How long does ERP implementation take?

A first phase for an SME typically takes three to four months. Larger rollouts with manufacturing, multiple companies and heavy integration take six to twelve months, delivered in phases.

Why do ERP projects fail?

The most common reasons are unclear requirements, excessive customization, poor data migration, insufficient user training and lack of executive ownership. Technology is rarely the root cause.

Should we customize the ERP to match our processes?

Adapt your processes to standard ERP practice where they are not a competitive advantage, and customize only where your way of working genuinely differentiates you. Every customization adds upgrade and maintenance cost.

About the author

INTELLIA Solutions Team

Business analysis and solution architecture

Solution architects and business analysts who scope projects, run discovery workshops and design implementations for ERP, HR, audit and operations software.

Named author byline pending

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