How To Fix SLIC004 - Buffer locked

SAP Error Message - Details

• Message type: E = Error

• Message class: SLIC - saplicense Messages

• Message number: 004

• Message text: Buffer locked

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SLIC004 - Buffer locked ?

  The SAP error message SLIC004, which indicates "Buffer locked," typically occurs when there is an attempt to access a buffer that is currently locked by another process. This can happen in various scenarios, such as when multiple users or processes are trying to access or modify the same data simultaneously.
  Causes:
  
  Concurrent Access: Multiple users or processes are trying to access the same buffer at the same time.
  Long-Running Transactions: A transaction that takes a long time to complete may hold a lock on a buffer longer than expected.
  Deadlocks: Situations where two or more processes are waiting for each other to release locks can lead to this error.
  System Configuration: Incorrect configuration of buffer management settings in the SAP system.
  
  Solutions:
  
  Wait and Retry: If the buffer is locked due to another process, waiting for a short period and then retrying the operation may resolve the issue.
  Identify and Terminate Blocking Processes: Use transaction codes like SM12 (to view and delete lock entries) or SM21 (to check system logs) to identify processes that are holding locks. If necessary, terminate those processes.
  Optimize Long-Running Transactions: Review and optimize any long-running transactions to ensure they complete in a timely manner, thus releasing locks more quickly.
  Adjust Buffer Settings: Review and adjust the buffer settings in the SAP system configuration to ensure they are appropriate for your workload.
  Check for Deadlocks: Use transaction SM21 to check for deadlocks and resolve them by terminating one of the processes involved.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (lock entries), SM21 (system log), and ST22 (dump analysis) for troubleshooting.
  SAP Notes: Check SAP Notes related to SLIC004 for any specific patches or updates that may address the issue.
  Performance Monitoring: Regularly monitor system performance and locking behavior to proactively identify and resolve potential issues before they lead to errors.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.