How To Fix CKMLMC016 - Database extract could not be created due to a lock

SAP Error Message - Details

• Message type: E = Error

• Message class: CKMLMC - Manual Change of Actual Cost Component Splits

• Message number: 016

• Message text: Database extract could not be created due to a lock

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CKMLMC016 - Database extract could not be created due to a lock ?

  The SAP error message CKMLMC016 indicates that a database extract could not be created due to a lock. This typically occurs in the context of Material Ledger (ML) and can be related to various processes that require access to the database for reading or writing data.
  Cause:
  
  
  Database Lock: The most common cause of this error is that another process is currently holding a lock on the database table that the Material Ledger is trying to access. This can happen if:
  
  A long-running transaction is in progress.
  Another user or process is executing a transaction that requires access to the same data.
  A background job is running that has not yet released the lock.
  
  
  
  System Performance Issues: If the system is under heavy load, it may take longer for locks to be released, leading to this error.
  
  
  Configuration Issues: Sometimes, incorrect configuration settings in the Material Ledger or related modules can lead to locking issues.
  
  
  Solution:
  
  
  Identify the Lock:
  
  Use transaction code SM12 to check for existing locks. You can filter by user or table name to find out which process is holding the lock.
  If you identify a lock that is no longer needed, you can manually delete it (if you have the necessary authorizations).
  
  
  
  Wait and Retry: If the lock is held by a legitimate process, you may need to wait for that process to complete. Once the lock is released, you can retry the operation that caused the error.
  
  
  Check Background Jobs: Use transaction code SM37 to check for any background jobs that might be running and holding locks. If a job is taking too long, you may need to investigate further.
  
  
  System Performance: If the system is under heavy load, consider optimizing performance by:
  
  Analyzing and tuning database performance.
  Reviewing and optimizing long-running transactions.
  
  
  
  Configuration Review: Review the configuration settings for the Material Ledger and related modules to ensure they are set up correctly.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM12 (for locks), SM37 (for background jobs), and CKMLCP (for Material Ledger closing).
  User Authorizations: Ensure that you have the necessary authorizations to view and manage locks and background jobs.
  Documentation: Refer to SAP documentation for Material Ledger and database management for more detailed information on handling locks and performance issues.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further assistance.