The Different Phases of Implementing an ERP Project

Implementing an ERP system is one of the most transformative IT projects an organization can undertake. When properly prepared, it brings about lasting changes in the performance of the finance function.

If not properly structured, it can lead to budget overruns, missed deadlines, and resistance from teams. To maximize the chances of success, it is essential to understand the different phases of the project and what they entail in practice. Here are the four key steps to a successful ERP implementation.

Would you like to start by understanding the challenges of a financial ERP project? Check out our articles: “Financial ERP: What You Need to Know Before You Start” and “What Are the Benefits of an ERP System for the Finance Department?”

Sentence 1 – an audit of the organization to draft the terms of reference

This phase, which is crucial to the success of the ERP project, can be broken down into several stages:

• Formation of a project team consisting of several members and a project manager.

• Analysis of the current situation: to examine existing information systems and how they are used, as well as the procedures specific to each department. This assessment helps confirm the value of implementing an ERP system.

• Requirements Definition: The technical and functional specifications can be drafted in-house or outsourced to an ERP consultant.

Good to know: The preparation phase plays a major role in the success of an ERP project. Incomplete specifications or poorly defined requirements are among the main causes of budget overruns and delays.

Sentence 2 – Choosing the Most Appropriate ERP Solution

You can either choose a software vendor first and then look for functional consultants to support the project team, or choose the system integrator first and then the solution.

In any case, the deployment strategy must be defined from the outset, both at the technical and strategic levels:

• Technical: on-premises deployment, on remote in-house servers, on third-party servers, or on both in-house and third-party servers.

• Strategic: “big bang” (all modules launch simultaneously), pilot (a single entity or geographic area launches on its own to validate the project), incremental (by functional themes), combined (a mix of the other strategies).

To structure your selection process: Which Financial ERP Should You Choose? Criteria, Comparisons, and Tips .

Phase 3 – ERP Go-Live

Once the software has been selected, there are several steps to follow beforethe ERP system is widely used:

• Installing the software package on the servers.

• Importing the company’s data, which is migrated to the ERP system. This step is often underestimated: the quality of the migrated data directly affects the system’s reliability from the very start.

• Configuration and testing: Based on feedback from end users, it is possible to add or modify certain features.

• User training: “key users” or ERP consultants train all employees on the software package.

To learn more about change management and data security during the go-live phase: ERP Finance: How Can You Ensure Data Security?

Phase 4 – The Evolution of Enterprise Resource Planning Software

Given that an ERP system is typically used for an average of 10 years, it will undergo several types of changes:

• Updates or version upgrades provided by the integrator and/or the software vendor to correct any issues or to adapt to functional and legal changes.

• Integrations with innovative technologies, such as collaborative platforms, as well as the addition of new features and/or modules.

• Additions of users and permissions to accommodate changes in user roles and internal staff changes.

It is best to select an ERP system after conducting an audit of the organization. Once installed, the software will evolve based on patches and new features provided by the vendor and/or the integrator.

Note for 2026: Cloud-based ERP (SaaS) systems now automatically incorporate legal and regulatory updates without requiring any technical intervention from the customer.

This is a decisive advantage in the face of increasing regulatory requirements: electronic invoicing, CSRD, and IFRS standards. To learn more: The Challenges of a Postmodern ERP.

Conclusion: Implement Your Financial ERP with SQORUS

Every phase of an ERP project is critical. A misstep in the scoping phase can have repercussions throughout the entire project. A poorly executed data migration compromises the system’s reliability from the very start. Inadequate change management hinders adoption and delays the return on investment.

For more than 35 years, SQORUS has been supporting large enterprises and mid-sized companies at every stage of their financial ERP projects: needs assessment and definition, assistance with system selection, implementation management (business analysis, project management, Operations Management, and Project Management Office), team training, and post-deployment support—all while maintaining complete independence from software vendors.

Would you like support with your financial ERP project? Contact us!

FAQ – Phases of an ERP Project Implementation