Same Serial Number Found On Another Coldfusion Serverthe Server May Be Out Of Compliance Fixed |work| May 2026

The error message "Same serial number found on another ColdFusion server" typically appears when Adobe's activation system detects that a non-volume license is active on more machines than the End User License Agreement (EULA) allows. This effectively flags the server as "out of compliance," which can lead to the server automatically downgrading to Developer Edition after a grace period. Root Causes of License Conflict

• If activation artifacts persist or the install was cloned, uninstall ColdFusion, delete leftover config and licensing files, then reinstall and activate on the intended host.

Last reviewed: March 2025 – Applies to ColdFusion 2018, 2021, and 2023. The error message "Same serial number found on

Preventing the Error in the Future

The best fix is prevention. Implement these policies: If activation artifacts persist or the install was

Resolving the Issue

• Update the serial number on the non-compliant server.
• Verify the updated serial number is unique and valid.