How To Fix LMON010 - Alert Monitor cannot start: root alert class is not defined

SAP Error Message - Details

• Message type: E = Error

• Message class: LMON - Monitor messages

• Message number: 010

• Message text: Alert Monitor cannot start: root alert class is not defined

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message LMON010 - Alert Monitor cannot start: root alert class is not defined ?

  The SAP error message LMON010 indicates that the Alert Monitor cannot start because the root alert class is not defined. This issue typically arises in the context of SAP Landscape Management (LaMa) or when dealing with alert monitoring in SAP systems.
  Cause:
  The root cause of this error is usually due to a misconfiguration in the alert monitoring setup. Specifically, it occurs when the system cannot find a defined root alert class, which is necessary for the Alert Monitor to function properly. This can happen if:
  
  The alert classes have not been properly defined in the system.
  There is a missing or incorrect configuration in the alert monitoring settings.
  The necessary authorization or roles are not assigned to the user trying to access the Alert Monitor.
  
  Solution:
  To resolve the LMON010 error, you can follow these steps:
  
  
  Check Alert Class Configuration:
  
  Go to transaction code SCC4 to check the client settings and ensure that the alert classes are properly defined.
  Use transaction code ALRTCATDEF to check the alert class definitions. Ensure that the root alert class is defined and active.
  
  
  
  Define Root Alert Class:
  
  If the root alert class is missing, you may need to create it. You can do this in the alert class definition transaction (ALRTCATDEF).
  Ensure that the root alert class is set up correctly with the necessary parameters.
  
  
  
  Check Authorization:
  
  Ensure that the user has the necessary authorizations to access the Alert Monitor. Check the roles assigned to the user and ensure they include the necessary permissions for alert monitoring.
  
  
  
  Restart the Alert Monitor:
  
  After making the necessary changes, restart the Alert Monitor to see if the issue is resolved.
  
  
  
  Check SAP Notes:
  
  Look for any relevant SAP Notes that might address this specific error. Sometimes, there are known issues or patches that can resolve configuration problems.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation related to Landscape Management and Alert Monitoring for any additional configuration steps that may be required.
  
  
  
  Related Information:
  
  SAP Notes: Search for SAP Notes related to LMON010 or Alert Monitor issues in the SAP Support Portal.
  SAP Community: Check the SAP Community forums for discussions related to this error, as other users may have encountered and resolved similar issues.
  SAP Help Portal: Refer to the SAP Help Portal for detailed documentation on configuring alert monitoring in SAP systems.
  
  By following these steps, you should be able to resolve the LMON010 error and successfully start the Alert Monitor. If the issue persists, consider reaching out to SAP support for further assistance.