Epicor Prophet 21 Consulting & Implementation

As an Epicor Prophet 21 consulting partner, ESS delivers the complete lifecycle: requirements and fit analysis, full P21 implementation, legacy data migration, customization and business-rule automation, system integration, reporting, and ongoing support. Our 15+ senior consultants bring 25+ years in wholesale distribution, so recommendations reflect how distributors actually buy, stock, price and ship — not generic ERP theory. Implementations are highly scalable and completely customizable, backed by a native on-premises API layer that needs no Epicor API module. One client-focused team owns the project from first demo through go-live and beyond, with no handoffs — the same consultants who design your Prophet 21 configuration stay on for support and optimization.

Both. For distributors moving off legacy platforms, ESS runs the full P21 implementation: workflow assessment, configuration, data migration, training and go-live. For companies whose original rollout never reached its potential, we re-implement or stabilize Prophet 21 — cleaning up data, configuration and workflows so the distribution ERP finally works the way the business runs. Stalled-project rescues are common: many P21 sites use a fraction of what they own because the initial setup fought their processes instead of fitting them. Either way, our senior consultants map the gap first, then close it using Epicor's supported framework rather than workarounds. ESS scopes both paths in a free assessment.

ESS routinely migrates distributors to Prophet 21 from A+, Baan/Infor, Macola, Excel, Microsoft Access and flat files. The migration covers master data — items, customers, suppliers — and transactional data such as open orders, inventory and financials, plus the pricing pages, contracts and rebates that are hardest to move by hand. Our proprietary, portal-driven tooling stages every record for review, loads in idempotent batches, and validates in parallel against the live business, so legacy ERP migration becomes an incremental process rather than a big-bang gamble. That approach shortens the cutover and de-risks go-live for any P21 implementation. See our dedicated Prophet 21 upgrade and migration page for the full approach.

Depth and ownership. ESS consultants know P21's business rules inside-out, build on Epicor's supported extension points, and back every engagement with a native on-premises API layer — so we customize and integrate deeply without requiring the Epicor API module. That engineering depth is rare among Prophet 21 consulting partners: most can configure the software, far fewer can extend it safely. Add 25+ years focused on wholesale distribution ERP, proprietary migration tooling, and a model where one client-focused team carries the whole lifecycle with no handoffs, and the difference shows in outcomes — including 100% client retention. You work with the same senior P21 specialists from first demo to long-term support.

Timelines depend on scope, data complexity and how many legacy systems feed the project — but ESS compresses them structurally. Our proprietary migration tooling starts moving data incrementally weeks before go-live and validates it in parallel with your team, so the riskiest part of a P21 implementation isn't crammed into one cutover weekend. Idempotent loads mean batches can be re-run safely with zero duplicates, and portal-based review surfaces mapping issues early instead of at go-live. Compared with a single big-bang migration, this de-risks the schedule as much as it shortens it. ESS scopes a realistic Prophet 21 timeline for your data and workflows in a free assessment.