How To Fix IU458 - Table & already locked for ICNV: ICNV nametab was deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: IU - Incremental Conversion (ICNV)

• Message number: 458

• Message text: Table & already locked for ICNV: ICNV nametab was deleted

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 IU458 - Table & already locked for ICNV: ICNV nametab was deleted ?

  The SAP error message IU458 indicates that a specific table (in this case, the ICNV nametab) is already locked, which can occur during various operations in the SAP system, particularly when dealing with data conversion or migration tasks. Here’s a breakdown of the cause, potential solutions, and related information for this error:
  Cause:
  
  
  Table Locking: The error typically arises when a table is locked by another process or user. This can happen if:
  
  A transaction is currently using the table.
  A previous operation did not complete successfully, leaving the table in a locked state.
  There are background jobs or other processes that are accessing the table simultaneously.
  
  
  
  Deletion of Table: The message also indicates that the ICNV nametab was deleted, which could mean that the system is trying to access a table that no longer exists or has been improperly deleted.
  
  
  Solutions:
  
  
  Check for Locks:
  
  Use transaction code SM12 to check for any existing locks on the table. You can view and delete locks if necessary, but be cautious as this may affect other users or processes.
  
  
  
  Review Background Jobs:
  
  Check if there are any background jobs running that might be accessing the table. Use transaction code SM37 to monitor job statuses and terminate any jobs that are causing the lock.
  
  
  
  Restart the Transaction:
  
  If the error occurred during a specific transaction, try restarting the transaction after ensuring that no locks are present.
  
  
  
  Check for Deletion Issues:
  
  If the table was deleted, verify if it was intended. If it was deleted accidentally, you may need to restore it from a backup or recreate it if possible.
  
  
  
  Consult SAP Notes:
  
  Look for relevant SAP Notes that might address this specific error. SAP frequently updates its knowledge base with solutions for known issues.
  
  
  
  System Restart:
  
  In some cases, a system restart may help clear locks, but this should be done with caution and typically as a last resort.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: To view and manage table locks.
  SM37: To monitor background jobs.
  SE11: To check the structure of the table and see if it exists.
  
  
  
  SAP Support: If the issue persists, consider reaching out to SAP support for assistance, especially if it involves critical data or system operations.
  
  
  Documentation: Review SAP documentation related to the specific module or process you are working with, as it may provide additional context or troubleshooting steps.
  
  
  By following these steps, you should be able to diagnose and resolve the IU458 error in your SAP system.