How To Fix MSG_CL_ER018 - Physical system was published with existing Deployment Units in system

SAP Error Message - Details

• Message type: E = Error

• Message class: MSG_CL_ER - Message Class for Enterprise Registry

• Message number: 018

• Message text: Physical system was published with existing Deployment Units in system

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MSG_CL_ER018 - Physical system was published with existing Deployment Units in system ?

  The SAP error message MSG_CL_ER018, which states "Physical system was published with existing Deployment Units in system," typically occurs in the context of SAP Landscape Management (LaMa) or when managing system landscapes in SAP Solution Manager. This error indicates that there is a conflict between the physical system and the deployment units that are already defined in the system.
  Cause:
  
  Existing Deployment Units: The error arises when you attempt to publish a physical system that already has deployment units associated with it. This can happen if the system was previously published or if there are inconsistencies in the system landscape configuration.
  Configuration Issues: There may be configuration issues in the SAP Solution Manager or Landscape Management that lead to this error.
  Inconsistent State: The system might be in an inconsistent state due to previous operations that were not completed successfully.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Existing Deployment Units:
  
  Go to the SAP Solution Manager or Landscape Management and check the existing deployment units associated with the physical system.
  Identify any deployment units that may be causing the conflict.
  
  
  
  Remove or Modify Deployment Units:
  
  If the deployment units are no longer needed, consider removing them.
  If they are still required, you may need to modify them to ensure they do not conflict with the new physical system publication.
  
  
  
  Re-Publish the Physical System:
  
  After addressing the existing deployment units, try to re-publish the physical system again.
  Ensure that all configurations are correct and that there are no other conflicts.
  
  
  
  Check for System Consistency:
  
  Use transaction codes like LMDB (Landscape Management Database) to check for consistency in the system landscape.
  Ensure that all systems are correctly defined and that there are no discrepancies.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that can resolve underlying issues.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above steps, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error and the steps you have already taken.
  
  
  
  Related Information:
  
  SAP Solution Manager: A tool for managing SAP systems and landscapes, providing functionalities for monitoring, managing, and optimizing SAP environments.
  SAP Landscape Management (LaMa): A tool that helps automate and manage SAP system landscapes, including system provisioning, monitoring, and maintenance.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as LMDB, SMD, and others that may help in managing your SAP landscape.
  
  By following these steps, you should be able to resolve the MSG_CL_ER018 error and successfully publish your physical system.