Guide — Legacy ERP Migration
Your accounting package isn't discarded; you're moving its boundaries
Statutory accounting and tax compliance remain in your existing package; differentiating manufacturing, warehouse, field, and approval workflows move to your custom system: the zero-risk hybrid migration model.
Hybrid ERP migration does not mean ripping and replacing your core financial software overnight; it means retaining statutory accounting in your mature package while migrating manufacturing, field service, customer portals, and internal approval flows to a tailored KodDelta web system. The two platforms communicate via automated two-way API pipelines, eliminating double data entry and drastically reducing recurring per-seat license fees.
4 Warning Signs You Have Outgrown Your Legacy Package
Standard packaged ERPs excel at tax filings, general ledgers, and standard payroll. However, growing companies inevitably hit rigid constraints:
- Explosion of Desktop Spreadsheets: Because the package's rigid screens cannot accommodate dynamic production recipes, field work orders, or custom multi-tier pricing, staff resort to unmanaged desktop Excel files.
- Punitive Per-User License Inflation: Adding shop-floor operators, warehouse pickers, and field technicians requires buying expensive full-user licenses, inflating annual recurring software budgets unnecessarily.
- Customization Dead-Ends: Adding a simple custom validation rule or new workflow status requires waiting months for external ERP consultants and paying exorbitant customization invoices.
- Operational Latency: Mobile workers cannot access heavy on-premise desktop ERP clients, forcing manual paper transcription and delayed data entry.
5 Common Migration Fears vs. Operational Reality
| Common Migration Fear | KodDelta Hybrid Approach & Fact |
|---|---|
| "We will lose our historical accounting history" | Statutory accounting remains in your existing package. The new system handles operational execution and posts summary journals via API. |
| "Data migration will introduce corrupted balances" | Custom ETL (Extract-Transform-Load) scripts cleanse data, deduplicate accounts, and verify mathematical ledger parity before go-live. |
| "Staff will struggle to learn two different systems" | Accountants stay in their familiar accounting package; operations and field teams use ultra-intuitive 10-second web interfaces designed specifically for their roles. |
| "Previous software investments will be wasted" | Your investment in accounting and tax compliance is preserved; you simply reduce non-accounting user seats to save 60–80% in ongoing costs. |
| "Migration will halt shipping and sales for weeks" | Zero downtime. Parallel shadow testing validates operations in advance; cutover is completed over a single weekend maintenance window. |
Our 4-Step Zero-Downtime Migration Framework
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Process Segregation & Data Inventory (Week 1–2)
We clearly demarcate which data stays in the financial package (General Ledger, Tax, Fixed Assets) and which workflows migrate to the custom platform (Production, Warehouses, Field Service, Approvals).
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ETL Cleansing & Master Data Extraction
Automated scripts extract active customer master records, current inventory counts, open purchase orders, and pricing matrices, discarding legacy junk data and duplicate records.
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Shadow Mode (Parallel Verification)
A pilot operations team runs live orders through the new custom system for 1–2 weeks while background API bridges verify mathematical parity with legacy records.
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Cutover & License Optimization
Final balance cutover occurs over a weekend. On Monday morning, staff start on the responsive new system, and legacy per-seat licenses are immediately downgraded to realize instant cost savings.
Frequently Asked Questions
Will staff need to enter data into both systems?
No. Bidirectional API bridges automatically replicate transactions. When a warehouse operator confirms a shipment in the custom software, the corresponding dispatch note and invoice are automatically posted in your accounting system.
Which ERP packages can you migrate from or integrate with?
We have deep integration and migration experience across SAP Business One, Microsoft Dynamics 365 / NAV, Sage, NetSuite, Oracle, as well as Turkish enterprise packages including Logo Tiger/Go, Mikro v15/v16/Fly, Netsis, and Nebim V3.
What if we don't have direct database access to our legacy system?
We extract and parse data via standard scheduled automated reports, ODBC gateways, or secure REST endpoints without requiring low-level database admin credentials.
Break free from legacy software constraints safely.
Schedule a 30-minute discovery call to map your hybrid ERP migration roadmap with zero operational risk.