Epicor Prophet 21 On-Premises Phase-Out: What to Know If You’re Considering a New ERP

Epicor is ending new feature development for on-premises Prophet 21 (P21) after version 2028.1, targeted for May 2028. Active support continues through June 30, 2029. After that, on-prem P21 customers move to sustaining support only: no security patches, no compliance updates, no new capabilities. Epicor-managed cloud customers are unaffected.The date