FAQ
Can I Migrate My Data to a New Apparel ERP Without Shutting Down Operations?
Short answer: Yes. Apparel ERP migrations are run in parallel, not as a hard stop. Your historical and open data is extracted, mapped, loaded into a test environment and validated against live operations before cutover, so orders keep shipping throughout. Ai2000's implementation team performs the migration as part of onboarding.
What data actually moves?
- Masters: styles, colors, sizes, materials, customers, vendors, price lists, retailer EDI profiles.
- Open transactions: unshipped sales orders, open POs, in-transit containers, current inventory by location and bin.
- Financial position: open AR/AP, GL opening balances, multi-currency settings.
- History: sales and purchasing history needed for forecasting and reporting.
Closed transactions, dead SKUs and duplicate customer records are usually better archived than migrated. A migration is the cheapest opportunity you will ever get to retire bad data.
The parallel-run method
- Extract and profile the legacy data to find duplicates, missing size runs and broken SKU relationships.
- Map legacy fields to the new matrix model — this is where generic ERPs struggle, because they treat every size as an unrelated item.
- Load into a sandbox and reconcile totals: units on hand, open order value, AR balance.
- Parallel validation: your team processes real orders in both systems for a defined window and compares outputs.
- Cutover on a low-volume day with a final delta load of transactions created since the last snapshot.
Where migrations go wrong
| Risk | Why it happens | Mitigation |
|---|---|---|
| Inventory does not tie out | Cycle counts were never reconciled in the old system | Count before you migrate, not after |
| EDI chargebacks at go-live | Retailer maps rebuilt from scratch | Use pre-built retailer maps and test with real 850/856 documents |
| Users revert to spreadsheets | Training happened before data was real | Train in the sandbox loaded with your own data |
| Scope creep | "While we are in there…" | Freeze phase one; log everything else for after go-live |
Further reading and sources
- ASC X12 — the EDI transaction standards (850 purchase order, 810 invoice, 856 ASN) that must be re-validated after any ERP change.
- Panorama Consulting ERP Report — independent research on ERP project risk, including data migration.
- NIST Cybersecurity Framework — a useful checklist for handling business data during a system transition.
Related questions
How much history should we bring over? Enough to forecast and report — typically several seasons of sales and purchasing history.
Who does the work? Ai2000's implementation team runs extraction, mapping, loading and validation with your data owners.
See your ERP fit and we will walk through a migration plan for your data.
See Your ERP Fit