How To Fix CLMS_TM027 - Your objects will be multiplexed with other (already) running session

SAP Error Message - Details

• Message type: E = Error

• Message class: CLMS_TM - Message class for the tenant mulitplexer

• Message number: 027

• Message text: Your objects will be multiplexed with other (already) running session

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 CLMS_TM027 - Your objects will be multiplexed with other (already) running session ?

  The SAP error message CLMS_TM027 indicates that the system is attempting to execute a task or process that is already being handled by another session. This typically occurs in the context of the SAP Landscape Management (LaMa) tool, where multiple tasks may be trying to access the same resources or objects simultaneously.
  Cause:
  
  Concurrent Sessions: The error usually arises when there are multiple sessions trying to perform operations on the same object or resource at the same time.
  Locking Mechanism: SAP uses a locking mechanism to prevent data inconsistencies. If one session has locked an object, other sessions will be unable to access it until the lock is released.
  Long-running Processes: If a previous task is taking longer than expected, it may block subsequent tasks from executing.
  
  Solution:
  
  Check Running Sessions: Use transaction codes like SM66 or SM50 to monitor active processes and identify if there are any long-running sessions that are holding locks on the objects you are trying to access.
  Wait for Completion: If you identify a session that is currently processing the same object, you may need to wait for it to complete before attempting to run your task again.
  Terminate Long-running Processes: If a session is stuck or taking too long, you may consider terminating it (if appropriate) to release the lock. Be cautious with this approach, as it may lead to data inconsistencies.
  Review Task Scheduling: If this error occurs frequently, consider reviewing how tasks are scheduled in your environment to avoid overlapping operations on the same objects.
  Increase Resources: If the issue is related to resource contention, consider increasing the resources available to your SAP system or optimizing the processes to reduce the load.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or patches related to this error.
  Documentation: Review the SAP Landscape Management documentation for best practices on managing tasks and sessions.
  System Logs: Analyze system logs for any additional error messages or warnings that may provide context for the issue.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  By following these steps, you should be able to address the CLMS_TM027 error and minimize its occurrence in the future.