/CWM/CU018 - No locks exist for table &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /CWM/CU -

• Message number: 018

• Message text: No locks exist for table &1

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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AnswerBot

• What is the cause and solution for SAP error message /CWM/CU018 - No locks exist for table &1 ?

  The SAP error message /CWM/CU018 No locks exist for table &1 typically indicates that there are no locks currently held on the specified table. This error can occur in various contexts, such as when trying to perform operations that require a lock on a table that is not currently locked.
  Cause:
  
  
  No Active Locks: The primary cause of this error is that the system is attempting to access or manipulate a table that does not have any active locks. This can happen if:
  
  The table was never locked.
  The lock was released before the operation was attempted.
  The operation being performed does not require a lock.
  
  
  
  Timing Issues: If the operation is being executed in a multi-user environment, it is possible that another user or process has released the lock before your operation could acquire it.
  
  
  Configuration Issues: There may be configuration settings that affect how locks are managed in the system.
  
  
  Solution:
  
  
  Check Lock Status: Use transaction code SM12 to check the lock entries for the table in question. This will help you determine if there are any locks currently held on the table.
  
  
  Re-attempt the Operation: If the operation is time-sensitive, you may want to retry the operation after a short delay to see if the lock becomes available.
  
  
  Review Code/Process: If you are developing or modifying code that interacts with the table, ensure that the locking mechanism is correctly implemented. Make sure that locks are being acquired before attempting operations that require them.
  
  
  Consult Documentation: Review SAP documentation or notes related to the specific table and the operations you are performing to ensure that you are following the correct procedures.
  
  
  System Configuration: If the issue persists, consider reviewing the system configuration related to locking mechanisms. This may involve consulting with your SAP Basis team or reviewing system parameters.
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SM12: To view and manage lock entries.
  SM21: To check system logs for any related errors or warnings.
  ST22: To check for dumps that may provide additional context.
  
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to locking mechanisms or the specific table in question.
  
  
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.