When implementing a new ERP, one question quickly arises: should the company adapt its business processes to the ERP’s standard functionality, or customize the ERP to reproduce existing practices ?

This decision can have a significant impact on project costs, implementation timelines, maintenance and future scalability.

The desire to reproduce existing processes is understandable. Employees are familiar with their current ways of working and may want to preserve practices that have proven effective over time.

However, an ERP implementation also represents an opportunity to rethink business processes, eliminate unnecessary activities and harmonize practices across the organization.

The objective is therefore not to systematically choose between standardization and customization, but to determine which processes should evolve and which specific requirements genuinely justify ERP customization.

Why Is This Decision Strategic in an ERP Project ?

An ERP is generally built around standardized processes and functionality.

These standards reflect business practices developed to address the needs of many organizations.

However, every company has its own:

• business processes;
• regulatory requirements;
• business rules;
• industry-specific requirements;
• organizational structure;
• working practices.

An ERP project therefore needs to find the right balance between standardization and differentiation.

Excessive customization can make the solution complex and expensive.

On the other hand, excessive standardization can prevent the organization from addressing genuinely strategic requirements.

Understanding the Difference Between ERP Standardization and Customization

Adapting Business Processes to the ERP Standard

This approach involves changing business processes so that they align with the ERP’s native functionality.

It can help organizations:

• simplify processes;
• reduce custom development;
• facilitate upgrades;
• accelerate implementation;
• reduce maintenance costs.

Customizing the ERP

ERP customization involves modifying or extending standard functionality to meet a specific business requirement.

This may include:

• custom development;
• functional extensions;
• customized workflows;
• specific interfaces;
• tailored automation;
• integration with third-party applications.

Customization can be appropriate, but it should be justified by genuine business value.

Why Can Adapting Business Processes Be Beneficial ?

Reducing Project Complexity

The more an ERP is customized, the more complex its design and implementation can become.

Every additional development needs to be:

• designed;
• developed;
• tested;
• documented;
• maintained.

Limiting customization therefore helps reduce overall project complexity.

Controlling Costs

Custom developments represent an additional project cost.

They also require resources for maintenance and future evolution.

Adopting more of the ERP’s standard functionality can therefore help control the Total Cost of Ownership (TCO).

Facilitating Future Upgrades

A heavily customized ERP can make future upgrades more complex.

By contrast, a solution that relies largely on native functionality can generally evolve more easily.

This is particularly important in Cloud ERP environments, where platform updates are released regularly.

Harmonizing Business Practices

In multi-site or international organizations, different teams may have developed their own ways of working.

An ERP project provides an opportunity to establish common processes.

This standardization can improve:

• management;
• reporting;
• training;
• controls;
• deployment across new entities.

Should Companies Always Adopt the ERP Standard ?

No.

Some customizations are perfectly legitimate.

A company may have developed a competitive advantage around a particular process.

In that situation, abandoning the capability simply to comply with the ERP standard could be counterproductive.

Customization may be appropriate when it relates to:

• a competitive advantage;
• a regulatory requirement;
• a strong industry-specific need;
• a strategic business process;
• an important customer requirement;
• an unavoidable operational constraint.

The question should therefore not be:

“Can we customize the ERP?”

Instead, the question should be:

“Does this customization create enough value to justify its cost and complexity?”

Key Questions to Ask Before Customizing an ERP

Before requesting a custom development, project teams should assess several criteria.

1. Is the process genuinely strategic ?

If the process is a source of differentiation for the organization, customization may be justified.

2. Is the requirement regulatory ?

Certain legal, tax or regulatory requirements may require specific adaptations.

3. Does the ERP standard really fail to meet the requirement ?

All available standard functionality should be reviewed before concluding that customization is necessary.

4. Can the process be simplified ?

A complex process is not necessarily an efficient process.

5. What will the maintenance cost be ?

Customization should be assessed over its entire lifecycle, not only based on its initial development cost.

6. What impact will it have on future upgrades ?

This question is particularly important for Cloud ERP environments.

The “We Have Always Done It This Way” Trap

One of the biggest challenges in an ERP project can come from historical habits.

Users may naturally request that their existing ways of working be reproduced exactly in the new ERP.

However, some practices exist simply because they were built around limitations of legacy systems.

An ERP project is therefore an opportunity to ask: Why do we work this way?

If the answer is simply “because we have always done it this way,” the process probably deserves to be reassessed.

Map Your Business Processes Before Making the Decision

Business process mapping is essential when deciding whether to adapt or customize an ERP.

It helps identify:

• genuinely necessary activities;
• manual tasks;
• controls;
• approval steps;
• interfaces;
• duplicate activities;
• bottlenecks.

This analysis makes it possible to compare current processes with the capabilities of the future ERP.

The objective is to define the target process before deciding whether a specific development is required.

Read also: Why Map Your Business Processes Before an ERP Project ?

A Decision Matrix for ERP Customization

Project teams can also use a decision matrix to assess customization requests.

This approach moves the discussion away from personal preferences and toward business value.

The Role of Business Teams in the Decision

The decision to customize an ERP should not be made by IT alone.

Business teams need to be involved in the decision-making process.

Finance, Supply Chain, Procurement, Manufacturing, Logistics and Customer Service teams should be able to explain:

• why a process matters;
• what constraints exist;
• what performance is expected;
• which capabilities are genuinely essential.

This collaboration helps avoid two situations:

Unnecessary customization of a process that could simply be improved.

Or, conversely, removing a strategically important capability simply to comply with the ERP standard.

Why Does This Matter Even More for Cloud ERP ?

Cloud ERP platforms evolve regularly.

Updates are generally managed by the software provider and can introduce new functionality or change certain behaviors.

Excessive customization can therefore complicate :

• upgrades;
• regression testing;
• maintenance;
• solution governance;
• architecture evolution.

For this reason, Cloud ERP projects generally favor greater use of standard functionality and controlled extensions.

The Objective : Find the Right Balance

It would be too simplistic to say that every company should adopt ERP standards.

Likewise, reproducing every historical process in the new ERP is rarely the best approach.

A better strategy is to divide processes into three categories:

Keep

Processes that provide genuine business value or address unavoidable requirements.

Simplify

Complex processes that can be improved without negatively affecting performance.

Standardize

Common processes for which the ERP’s native functionality provides an effective solution.

This approach helps organizations build an ERP environment that is simpler, more scalable and better aligned with business strategy.

The BHI Consulting Approach

At BHI Consulting, we consider the balance between standardization and customization to be a key business transformation issue.

Our approach includes :

• analyzing existing business processes;
• identifying bottlenecks;
• defining target processes;
• assessing ERP standard functionality;
• identifying genuinely differentiating requirements;
• evaluating custom development requests;
• supporting business teams throughout the transformation.

The objective is neither to customize the ERP at all costs nor to force the organization to abandon its specific requirements.

It is to build an ERP environment that is simple, efficient, scalable and genuinely aligned with the company’s business objectives.

Conclusion

There is no universal answer to the question: “Should we adapt our processes or customize the ERP ?”

In most cases, organizations benefit from leveraging ERP standards and using the implementation as an opportunity to simplify and harmonize their processes.

However, certain specific requirements may represent genuine strategic value and justify customization.

The right decision therefore requires a structured assessment of business processes, business value, costs, risks and the long-term scalability of the solution.

A successful ERP project is not about reproducing the company inside a new system. It is about building a system that enables the company to operate better.

Are You Preparing an ERP Project ?

Every organization has its own processes, constraints and transformation objectives.

The consultants at BHI Consulting help companies analyze, optimize and transform their business processes in order to build efficient and sustainable ERP projects.

Contact our experts to discuss your ERP project and identify which processes should be standardized, adapted or customized.