How To Fix CLMS_TM015 - Multiplex/tasklist session failed for client &1; could not get lock

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 015

• Message text: Multiplex/tasklist session failed for client &1; could not get lock

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_TM015 - Multiplex/tasklist session failed for client &1; could not get lock ?

  The SAP error message CLMS_TM015 indicates that a multiplex or tasklist session has failed for a specific client due to an inability to obtain a lock. This typically occurs in scenarios where multiple processes are trying to access the same resource simultaneously, leading to a contention for locks.
  Causes:
  
  Concurrent Access: Multiple users or processes are trying to execute the same task or access the same resource at the same time.
  Long-Running Transactions: A transaction that is taking too long to complete may hold a lock longer than expected, preventing other processes from obtaining the necessary lock.
  Deadlocks: Situations where two or more processes are waiting for each other to release locks, causing a deadlock.
  System Configuration: Incorrect configuration of the SAP system or tasklist settings may lead to locking issues.
  Database Issues: Problems with the underlying database can also lead to locking issues.
  
  Solutions:
  
  Check for Active Sessions: Use transaction codes like SM12 (to check for locks)