Epicor Prophet 21 Upgrade & Data Migration
Moving to Prophet 21 from A+, Baan, Macola, Excel or Access? ESS migrates your master and transactional data with portal-driven, idempotent tooling — incrementally, validated in parallel, so the cutover is short and the data is trusted on day one.
Migrate incrementally, weeks before go-live — idempotent batches, parallel validation, zero duplicate posts.
A Portal-Driven Migration in Five Steps
Every domain — items, customers, suppliers, financials, open orders, inventory — moves through the same controlled, reviewable flow.
Extract
Pull master and transactional data from A+, Baan, Macola, Excel, Access or flat files.
Stage & Validate
Data is mapped to P21 and validated in a portal — items, customers, suppliers, financials, open orders, inventory.
Review in Portal
Your team reviews and signs off on records before anything posts; status is visible in real time.
Migrate in Bulk
Idempotent batches load into Prophet 21 — re-runnable with zero duplicate posts.
Keep in Sync
Optionally sync legacy and P21 through cutover so the business never stops.
The Riskiest Part of P21 Is the Data — So We Engineered It
Most P21 projects live or die on the data conversion. ESS built proprietary, self-serving migration portals and automated tooling specifically to take that risk off the table — extracting from legacy systems, validating in parallel, and loading in re-runnable batches.
- Proprietary, portal-driven migration tooling
- Master + transactional data, plus pricing, contracts and rebates
- Incremental migration starting weeks before go-live
- Idempotent batches — re-run safely with zero duplicates
- Parallel validation and real-time status dashboards
- Reduced downtime and a de-risked cutover
Less Downtime
Short, controlled cutover
Idempotent
Re-run with no duplicates
Validated
Reviewed before it posts
De-Risked
No big-bang surprises
Migration is usually step one — see Prophet 21 consulting & implementation for the full rollout, or integrations & API to connect P21 to the rest of your stack.
Prophet 21 Migration — FAQ
Which legacy systems do you migrate to Prophet 21?
ESS routinely migrates distributors to Prophet 21 from A+, Baan/Infor, Macola, Excel, Microsoft Access and flat files. We map both master data (items, customers, suppliers) and transactional data (open orders, inventory, financials), plus pricing pages, contracts and rebates.
How do you reduce downtime during a P21 cutover?
Instead of one big-bang load, our portal-driven tooling lets us migrate incrementally — starting weeks before go-live — and validate data in parallel against the live business. Batches are idempotent, so re-running them never creates duplicates. That shrinks the cutover window dramatically.
How is data validated before go-live?
Every domain is staged and validated in a portal where your team can review records, catch mapping issues and sign off before anything posts to Prophet 21. You see status in real time, so there are no surprises at cutover.
Do you handle pricing, contracts and rebates?
Yes. We import pricing from your pricing pages, books and libraries into Prophet 21, including conditional pricing for contracts and rebates — the data that's usually hardest and riskiest to move by hand.
Can you also keep legacy and P21 in sync during a phased move?
Yes. The same migration and integration tooling can keep systems synchronized during a phased transition, so the business keeps running while you move — no hard stop required.
Get a De-Risked Path to Prophet 21
Tell us your legacy system and data volumes. We'll outline an incremental migration plan with a short, predictable cutover.