ERP Selection Process: How to Evaluate and Choose a Cloud ERP System
A practical guide to the ERP selection process: defining requirements, evaluating cloud ERP platforms, and choosing the right implementation partner.
2 min read
The Milestone Team Published Updated
Implementing an ERP system involves several stages, from defining requirements and configuring workflows to migrating data, testing, training, and go-live.
These activities often overlap. Understanding the ERP implementation process helps businesses see what happens during each stage and how the work comes together.
The kickoff meeting establishes the foundation for the project. The implementation partner and customer review the scope, objectives, responsibilities, and expected timeline.
The goal is to make sure everyone understands the project plan and their responsibilities before work begins.
Before configuring the new ERP system, the implementation team reviews how the business currently operates and identifies what needs to change. This may include accounting, approvals, purchasing, inventory, reporting, and other operational requirements.
Rather than recreating every process from the old system, this stage provides an opportunity to improve workflows and eliminate unnecessary workarounds. The result is a clearer understanding of how business processes should operate in the new ERP.
Once requirements are established, the implementation team begins configuring the ERP system.
Key employees review configuration decisions and provide feedback throughout this stage. Configuration and testing may overlap as the team refines the system.
Not every business requirement requires custom development. Standard ERP functionality should be evaluated first before deciding whether additional customization is necessary.
Integrations with payroll, ecommerce, CRM, warehouse systems, or other applications should be identified early. The team determines what information needs to move between systems, how those connections will work, and what testing is required.
Excessive customization can add cost, extend implementation timelines, and create additional maintenance requirements. The focus should be on meeting business needs without unnecessary development.

Implementation activities often overlap, and the sequence may vary by project.
Data migration involves moving the information needed to operate in the new ERP system. Depending on the project, this may include the chart of accounts, customer and vendor records, inventory, opening balances, outstanding transactions, and selected historical data.
Not every implementation requires years of historical transactions to be migrated. The customer and implementation partner should agree on what information is needed, clean existing records, and validate the imported data before go-live. Preparation for migration often begins early in the project.
User Acceptance Testing allows employees to confirm that the configured ERP supports their actual business processes. Rather than testing isolated features, teams should work through representative transactions from beginning to end.
Examples include purchase orders, invoices, inventory transactions, financial reports, and integrations. Issues are documented, addressed, and retested before go-live. Testing may begin while configuration and migration work are still underway.
Training helps employees understand how to perform their responsibilities in the new ERP. Effective training focuses on the transactions, workflows, and reports each employee will use.
Role-based instruction, hands-on practice, and reference materials help employees prepare. Training and testing often overlap, giving people a chance to become familiar with the system while confirming that it meets business needs.
Go-live is when the business begins using the new ERP for daily operations. Before transitioning, the team should establish a cutover plan that identifies when transactions stop in the old system, how opening balances and outstanding transactions will be validated, and who is responsible for resolving issues.
The exact transition approach depends on the business and its implementation plan.
Employees may need assistance with questions, minor adjustments, and unfamiliar processes during the first several weeks. Post-implementation support helps the business stabilize operations and identify improvements to consider next.
Understanding the implementation process is one part of planning an ERP project. It is also important to know what your team needs to prepare before work begins.
Explore our ERP Implementation Guide for practical advice on readiness, internal responsibilities, data preparation, common delays, and preparing employees for go-live.
A practical guide to the ERP selection process: defining requirements, evaluating cloud ERP platforms, and choosing the right implementation partner.
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