How To Fix BNK_COM_CORE004 - Lock failed on Batch Item with batch header &1 and item no &2.

SAP Error Message - Details

• Message type: E = Error

• Message class: BNK_COM_CORE - Messages related to the core and application of Bank Comm

• Message number: 004

• Message text: Lock failed on Batch Item with batch header &1 and item no &2.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message BNK_COM_CORE004 - Lock failed on Batch Item with batch header &1 and item no &2. ?

  The SAP error message BNK_COM_CORE004 indicates that there is a lock failure on a batch item, specifically related to a batch header and item number. This error typically occurs in the context of batch processing in SAP, where multiple processes or users are trying to access or modify the same batch item simultaneously.
  Cause:
  
  Concurrent Access: The most common cause of this error is that another user or process is currently accessing or modifying the same batch item. SAP uses locks to prevent data inconsistencies, and if one process holds a lock, others will be unable to access the same data until the lock is released.
  Long-running Transactions: If a transaction takes too long to complete, it can hold a lock on the batch item for an extended period, leading to this error for other users trying to access the same item.
  System Configuration: In some cases, system configuration or custom developments may lead to unexpected locking behavior.
  
  Solution:
  
  Wait and Retry: If the error is due to concurrent access, the simplest solution is to wait for a short period and then retry the operation. The lock may be released once the other transaction completes.
  Identify Locking Process: Use transaction code SM12 to check for active locks. You can identify the user or process that is holding the lock on the batch item. If necessary, you can ask the user to release the lock or terminate their session if it is safe to do so.
  Optimize Long-running Transactions: If you identify that a particular transaction is taking too long, consider optimizing it to reduce the time it holds locks. This may involve reviewing the logic, database queries, or any other processes involved.
  Check for Custom Code: If there are custom developments or enhancements in your SAP system, review them to ensure they are not causing unnecessary locks or delays.
  System Configuration Review: If the issue persists, it may be worthwhile to review the system configuration related to batch processing and locking mechanisms.
  
  Related Information:
  
  Transaction Codes: 
  
  SM12: To view and manage locks.
  SM21: To check system logs for any related errors or warnings.
  ST22: To check for dumps that may provide additional context.
  
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review SAP documentation related to batch processing and locking mechanisms for a deeper understanding of how locks are managed in your specific SAP environment.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.