/mcpto CallManager was lost. Explanation Connection to CallManager was lost Recommended Action NONE Error Message %UC_TCD-6-UserLoginSuccess: %[UserID=String][AppID=String][ClusterID=String] [NodeID=String]: User successfully logged in.. Explanation User successfully logged in. Recommended Action NONE Error Message %UC_TCD-3-UserLoginFailed: %[UserID=String][AppID=String][ClusterID=String] [NodeID=String]: User log in failed because of bad user id or password.. Explanation User log in failed because of bad user id or password. Recommended Action NONE Error Message %UC_TCD-6-UserAlreadyLoggedIn: %[UserID=String][AppID=String][ClusterID=String] [NodeID=String]: User is already logged in. Explanation User is already logged in Recommended Action NONE Error Message %UC_TCD-6-UserLoggedOut: %[UserID=String][AppID=String][ClusterID=String] [NodeID=String]: User logged out. Explanation User logged out Recommended Action NONE Error Message %UC_TCD-6-AgentOnline: %[AppID=String][ClusterID=String][NodeID=String]: Agent online. Explanation Agent online Recommended Action NONE Error Message %UC_TCD-6-AgentOffline: %[AppID=String][ClusterID=String][NodeID=String]: Agent offline. Explanation Agent offline Recommended Action NONE Error Message %UC_DirSync-6-CiscoDirSyncStarted: %[AppID=String][ClusterID=String][NodeID=String]: Cisco DirSync Application started . Explanation Application started successfully Recommended Action No action required. 5/24/26, 3:34 AM System Error Messages for Cisco Unified Communications Manager 15 - Cisco https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/err_msgs/15_x/ccmalarms15.html 66/343