How To Fix ICC_CN860 - Cannot lock book &1 in lot &2

SAP Error Message - Details

• Message type: E = Error

• Message class: ICC_CN - Nachrichten zum Druck vornumerierter SD-Belege

• Message number: 860

• Message text: Cannot lock book &1 in lot &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ICC_CN860 - Cannot lock book &1 in lot &2 ?

  The SAP error message ICC_CN860 indicates that the system is unable to lock a specific book in a particular lot. This typically occurs in the context of inventory management or financial transactions where concurrent access to a resource is restricted to maintain data integrity.
  Cause:
  The error can be caused by several factors, including:
  
  Concurrent Access: Another user or process is currently accessing or modifying the same book and lot, preventing your transaction from acquiring the necessary lock.
  Long-running Transactions: A transaction that takes a long time to complete may hold the lock longer than expected, causing subsequent attempts to fail.
  System Configuration: There may be configuration settings that affect how locks are managed in your SAP environment.
  Database Issues: Sometimes, underlying database issues can lead to locking problems.
  
  Solution:
  To resolve the ICC_CN860 error, you can try the following steps:
  
  
  Check for Active Sessions: Use transaction codes like SM12 (to view lock entries) to check if another user or process is holding the lock on the book and lot. If you find an active session that is no longer needed, you may need to contact the user or administrator to release the lock.
  
  
  Wait and Retry: If the lock is held by a legitimate process, you may need to wait for that process to complete and then retry your transaction.
  
  
  Review Long-running Transactions: Identify any long-running transactions that may be causing locks to persist longer than necessary. Optimize these transactions if possible.
  
  
  System Configuration Review: Consult with your SAP Basis team to review the configuration settings related to locking mechanisms. They may need to adjust parameters to better handle concurrent access.
  
  
  Database Health Check: If you suspect database issues, work with your database administrator to check for any underlying problems that could be affecting locking behavior.
  
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM12 (to view and manage lock entries), SM21 (to view system logs), and ST22 (to check for dumps) for further investigation.
  User Roles and Permissions: Ensure that users have the appropriate roles and permissions to access the books and lots they are trying to work with.
  SAP Documentation: Refer to SAP's official documentation for more detailed information on locking mechanisms and error handling.
  
  If the issue persists after trying the above solutions, it may be beneficial to escalate the matter to your SAP support team or consult with SAP directly for further assistance.