How To Fix MILL_CPP026 - System error: Locking object &

SAP Error Message - Details

• Message type: E = Error

• Message class: MILL_CPP - Messages for converting planned order into purchase order

• Message number: 026

• Message text: System error: Locking object &

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 MILL_CPP026 - System error: Locking object & ?

  The SAP error message MILL_CPP026, which states "System error: Locking object &," typically indicates that there is an issue related to locking mechanisms within the SAP system. This error can occur in various contexts, often when multiple users or processes are trying to access or modify the same data simultaneously, leading to a conflict.
  Causes:
  
  Concurrent Access: Multiple users or processes are trying to access or modify the same object or data at the same time.
  Lock Table Overflow: The lock table may be full, preventing new locks from being created.
  Long-Running Transactions: A transaction that holds a lock for an extended period can block other transactions.
  System Configuration Issues: Misconfigurations in the system settings related to locking mechanisms.
  Database Issues: Problems with the underlying database that affect locking behavior.
  
  Solutions:
  
  Identify the Lock: Use transaction code SM12 to check for existing locks. You can see which user or process is holding the lock and what object is locked.
  Release Locks: If you identify a lock that is no longer needed, you can manually delete it from the lock table using SM12. Be cautious when doing this, as it may affect other users.
  Check for Long-Running Transactions: Investigate any long-running transactions that may be holding locks and causing contention. You can use transaction SM50 to monitor active processes.
  Increase Lock Table Size: If the lock table is frequently full, consider increasing its size. This can be done by adjusting the profile parameters in the SAP system.
  Review System Configuration: Ensure that the system is configured correctly for handling locks. This may involve checking settings in the instance profile.
  Database Maintenance: Perform regular database maintenance to ensure optimal performance and locking behavior.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: Display and manage lock entries.
  SM50: Monitor active processes.
  SM21: Check system logs for errors and warnings.
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to locking and the MILL_CPP026 error.
  Documentation: Review SAP documentation on locking mechanisms and best practices for managing concurrent access.
  
  If the issue persists after trying the above solutions, it may be necessary to consult with your SAP Basis team or SAP support for further assistance.