How To Fix ENQ_ADMIN012 - &1 out of &2 locks have been displayed

SAP Error Message - Details

• Message type: E = Error

• Message class: ENQ_ADMIN - Messages used by Enqueue Monitoring and Administration

• Message number: 012

• Message text: &1 out of &2 locks have been displayed

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 ENQ_ADMIN012 - &1 out of &2 locks have been displayed ?

  The SAP error message ENQ_ADMIN012 indicates that a certain number of locks have been displayed in the system, and it typically relates to the management of lock entries in the SAP system. The message format is usually as follows: "ENQ_ADMIN012 &1 out of &2 locks have been displayed," where &1 represents the number of locks currently displayed, and &2 represents the total number of locks in the system.
  Cause:
  
  Lock Table Overflow: The error can occur when the lock table is full or when there are too many locks being held, which can lead to performance issues or the inability to acquire new locks.
  Long-Running Transactions: If there are transactions that are holding locks for an extended period, it can lead to a situation where the number of locks displayed is high.
  Deadlocks: In some cases, deadlocks can occur, causing locks to be held longer than necessary.
  Configuration Issues: The configuration of the lock table size may not be sufficient for the workload, leading to this error.
  
  Solution:
  
  Analyze Locks: Use transaction SM12 to analyze the locks currently held in the system. Identify any long-running or unnecessary locks that can be released.
  Release Locks: If you find locks that are no longer needed, you can manually delete them using transaction SM12. Be cautious when doing this, as it may affect ongoing transactions.
  Increase Lock Table Size: If the lock table is frequently reaching its limit, consider increasing the size of the lock table. This can be done by adjusting the profile parameters:
  
  enque/table_size: This parameter controls the size of the lock table.
  enque/table_size: Increase this value based on your system's requirements.
  
  
  Monitor Long-Running Transactions: Use transaction SM66 or SM50 to monitor active processes and identify any long-running transactions that may be holding locks unnecessarily.
  Review Application Logic: If certain transactions are consistently causing lock issues, review the application logic to ensure that locks are being acquired and released appropriately.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: Display and manage lock entries.
  SM50: Monitor active processes.
  SM66: Monitor global processes.
  
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or patches related to lock management.
  Performance Tuning: Consider performance tuning of the application to reduce the number of locks being held.
  
  By following these steps, you should be able to address the ENQ_ADMIN012 error and improve the lock management in your SAP system.