CLUNDO034 - Characteristic & is already locked by &

SAP Error Message - Details

• Message type: E = Error

• Message class: CLUNDO - Message Class for Undo Functions in Classification

• Message number: 034

• Message text: Characteristic & is already locked by &

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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AnswerBot

• What is the cause and solution for SAP error message CLUNDO034 - Characteristic & is already locked by & ?

  The SAP error message CLUNDO034 indicates that a characteristic is already locked by another user or process. This typically occurs in the context of classification in SAP, where multiple users may attempt to edit or access the same characteristic simultaneously.
  Cause:
  
  Concurrent Access: Another user is currently editing the characteristic.
  Session Lock: A previous session may not have released the lock properly.
  Long-running Transactions: A transaction that takes a long time to complete may hold the lock longer than expected.
  System Issues: Occasionally, system issues or bugs can lead to locks not being released.
  
  Solution:
  
  Wait and Retry: If another user is editing the characteristic, wait for them to finish and then try again.
  Check Lock Entries: Use transaction code SM12 to check for lock entries. You can see which user is holding the lock and potentially contact them to release it.
  Release Locks: If you have the necessary authorizations, you can manually delete the lock entry in SM12. Be cautious with this approach, as it may disrupt another user's work.
  Session Management: Ensure that your sessions are properly managed and closed when not in use to avoid unnecessary locks.
  System Monitoring: If this issue occurs frequently, consider monitoring the system for long-running transactions or potential performance issues that may lead to locks not being released.
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: To view and manage lock entries.
  SM21: To check system logs for any related errors or warnings.
  SE11: To view the data dictionary and check the characteristics involved.
  
  
  
  User Communication: If you are in a collaborative environment, communicate with your team to ensure that everyone is aware of who is working on which characteristics to minimize conflicts.
  
  
  Documentation: Refer to SAP Help documentation for more details on classification and handling locks in the system.
  
  
  If the problem persists after trying these solutions, it may be necessary to consult with your SAP Basis team or technical support for further investigation.