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ERP Migration Cost Calculator

Estimate the total cost and timeline of switching ERP systems. Covers data migration, integration rebuild, parallel running, and staff retraining.

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ERP Migration: What You Need to Know

The Five Phases of ERP Migration

A successful ERP migration follows five distinct phases: (1) Assessment and planning, where you audit your current data and define migration scope; (2) Data mapping and cleansing, the most critical phase where you map old fields to new structures and clean up data quality issues; (3) Development and testing, where ETL scripts are built and validated against sample data; (4) Parallel running, where both systems operate simultaneously for 1-3 months; and (5) Go-live and decommissioning, where the old system is retired and users fully transition.

Why Companies Switch to Odoo

The most common reasons for migrating to Odoo are cost reduction (60-80% savings vs. SAP/Oracle), modernization of legacy systems, consolidation of multiple tools into one platform, and the desire for an open-source solution with no vendor lock-in. Odoo's built-in import tools and well-documented API make migrations smoother than most enterprise ERPs. ECOSIRE's migration methodology has been refined across 500+ projects.

Common Migration Mistakes to Avoid

The three most expensive migration mistakes are: (1) Migrating all historical data when only 2-3 years are needed, which can double migration costs; (2) Skipping parallel running to save money, which leads to undetected errors in production; (3) Underestimating change management, causing user adoption issues that negate the benefits of the new system. Budget at least 15-20% of total migration cost for training and change management.

Frequently Asked Questions

How much does it cost to migrate from SAP to Odoo?
Migrating from SAP to Odoo typically costs $30,000-250,000 depending on data volume, complexity, and number of integrations. Simple migrations with under 10,000 records can be completed for $30,000-50,000. Complex migrations with full history, custom fields, and multiple integrations can cost $150,000-250,000. ECOSIRE has completed 100+ SAP-to-Odoo migrations.
How long does an ERP migration take?
Simple migrations (basic data, few integrations) take 2-4 months. Medium complexity migrations with custom fields and partial history take 4-8 months. Complex enterprise migrations with full historical data, regulatory requirements, and 8+ integrations can take 8-18 months. We recommend phased migrations to reduce risk and deliver value faster.
What data should I migrate to a new ERP?
At minimum, migrate master data (contacts, products, chart of accounts), open transactions (unpaid invoices, pending orders), and current inventory levels. Historical data is optional — consider migrating only 2-3 years of transaction history and archiving older records. Regulatory requirements may mandate longer retention of financial records.
Should I run both ERP systems in parallel?
Yes, running systems in parallel for 1-3 months is strongly recommended. This allows you to validate that the new system produces correct results before decommissioning the old one. Run at least one full billing/closing cycle in parallel. The cost is typically $5,000-15,000/month but prevents costly errors during go-live.
What are the biggest risks of ERP migration?
The three biggest risks are: (1) Data quality issues — dirty data in the old system causes problems in the new one, (2) Integration failures — API connections that work differently in the new system, (3) User adoption — staff resistance to new workflows. Mitigate these with data cleansing before migration, thorough integration testing, and comprehensive training programs.

Planning an ERP Migration?

ECOSIRE has migrated 500+ businesses from SAP, Oracle, and Dynamics to Odoo. Get a free migration assessment with a detailed project plan and timeline.

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