How To Fix MC654 - Check lock object &

SAP Error Message - Details

• Message type: E = Error

• Message class: MC - Aggregate: views, matchcodes, lock objects

• Message number: 654

• Message text: Check lock 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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MC654 - Check lock object & ?

  The SAP error message MC654, which states "Check lock object &," typically occurs in the context of inventory management or material management processes. This error is related to issues with lock objects in the SAP system, which are used to manage concurrent access to data in a multi-user environment.
  Cause:
  
  
  Lock Object Issues: The error usually indicates that there is a problem with the lock object that is being used in the transaction. This could be due to:
  
  The lock object not being defined correctly in the system.
  A conflict with another transaction that is holding a lock on the same object.
  The lock object being deleted or not activated.
  
  
  
  Database Locking: If multiple users or processes are trying to access the same data simultaneously, it can lead to locking issues, causing this error to appear.
  
  
  Custom Development: If there are custom programs or enhancements that interact with standard SAP transactions, they may not handle locking correctly, leading to this error.
  
  
  Solution:
  
  
  Check Lock Object Definition:
  
  Use transaction code SE11 to check the definition of the lock object that is causing the issue. Ensure that it is correctly defined and activated.
  
  
  
  Analyze Lock Entries:
  
  Use transaction code SM12 to check for existing lock entries. If there are locks that are no longer needed, they can be deleted (if you have the necessary authorizations).
  
  
  
  Review Custom Code:
  
  If the error is occurring in a custom program, review the code to ensure that it is correctly managing locks. Ensure that the lock is being set and released properly.
  
  
  
  Transaction Monitoring:
  
  Monitor the transactions that are causing the issue. If a specific transaction is frequently causing the error, it may need to be optimized or reviewed for performance issues.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates that resolve known issues.
  
  
  
  System Restart:
  
  In some cases, a system restart may help clear any lingering locks that are causing the issue.
  
  
  
  Related Information:
  
  Lock Objects: Lock objects in SAP are defined in the Data Dictionary and are used to prevent data inconsistencies by ensuring that only one user can modify a piece of data at a time.
  Transaction Codes:
  
  SE11: Data Dictionary to check lock object definitions.
  SM12: To view and manage lock entries.
  SM21: To check system logs for any related errors or warnings.
  
  
  SAP Community: Engaging with the SAP Community forums can provide insights from other users who may have encountered similar issues.
  
  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.