Service
Data Migration & System Transitions
Moving to a new ERP — or upgrading the one you have — without losing data integrity or operational continuity.
ERP migrations fail when they are treated as technical projects rather than financial events. The data that moves from one system to another has to reconcile — balances need to match, open items need to carry correctly, and the new system needs to close its first period without surprises.
Neptune approaches migrations with the same discipline we bring to reconciliation work: controlled process, audit trail logic, and verification at every step. We plan for the scenarios that typically cause problems — and we document the process so the migration is defensible after it's done.
What We Cover
ERP Upgrade Data Migration
Extract, transform, and load data from legacy ERP systems into new platforms with full field-level mapping documentation and pre/post validation.
SQL to SQLite Conversion
Convert SQL Server databases to SQLite for offline tools, archival, or lightweight deployment — with schema optimization and data type alignment.
Cutover Planning & Testing
Structured cutover plans with pre-go-live validation runs, documented rollback procedures, and acceptance criteria your team signs off on before go-live.
Data Validation & Reconciliation
Post-migration validation: record counts, financial totals, open transaction reconciliation, and cross-system checks before the legacy system is retired.
Source Data Validation
Validate source data quality before migration begins. Identify missing required fields, invalid formats, and referential integrity violations while there is still time to fix them.
Legacy Data Archival
Structure and archive historical data in accessible formats, ensuring you can answer questions about transactions years after the legacy system is gone.
Parallel-Run Support
Support parallel operation of old and new systems during transition, including daily reconciliation of outputs between both systems through the cutover window.
Production vs. Test Comparison
Compare production and test environment data sets to validate that configuration changes produce expected results before they reach live operations.
Ready to Start
Ready to Bring Clarity to Your ERP?
Let's map out what clean looks like for your operation. Initial conversations are no-commitment.
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