How To Fix BC_DATAMODEL_SERVICE145 - Object already locked

SAP Error Message - Details

• Message type: E = Error

• Message class: BC_DATAMODEL_SERVICE - BC Training (All Courses)

• Message number: 145

• Message text: Object already locked

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message BC_DATAMODEL_SERVICE145 - Object already locked ?

  The SAP error message BC_DATAMODEL_SERVICE145: Object already locked typically occurs when a user or process attempts to access or modify a data object that is currently locked by another user or process. This locking mechanism is a part of SAP's data integrity and concurrency control to prevent simultaneous modifications that could lead to data inconsistencies.
  Causes:
  
  Concurrent Access: Another user or transaction is currently editing or processing the same object.
  Long-running Transactions: A transaction that takes a long time to complete may hold a lock on the object longer than expected.
  Uncommitted Changes: If a user has made changes to the object but has not yet committed those changes, the object remains locked.
  System Errors: Occasionally, system errors or crashes can leave objects in a locked state.
  
  Solutions:
  
  Wait and Retry: If the lock is temporary, waiting for the other user or process to complete their transaction may resolve the issue.
  Identify the Lock: Use transaction codes like SM12 (Display and Delete Locks) to identify which user or process is holding the lock. You can then communicate with that user to resolve the issue.
  Release the Lock: If you have the necessary authorizations, you can manually release the lock from transaction SM12. However, this should be done with caution, as it may lead to data inconsistencies if the other user is in the middle of a critical operation.
  Check for Long-running Transactions: Use transaction SM66 (Global Work Process Overview) to check for long-running transactions that may be holding locks.
  Review Application Logic: If this error occurs frequently, review the application logic to ensure that locks are being managed properly and that transactions are being committed or rolled back as needed.
  
  Related Information:
  
  Lock Management: Understanding how SAP handles locks can help in troubleshooting. Locks can be exclusive (preventing all other access) or shared (allowing read access but preventing write access).
  Transaction Codes:
  
  SM12: To view and manage locks.
  SM66: To monitor active processes and their statuses.
  SM21: To check system logs for any related errors or warnings.
  
  
  User Communication: If the lock is held by another user, it may be helpful to communicate with them to understand their actions and coordinate access to the object.
  
  Best Practices:
  
  Encourage users to commit or rollback their transactions promptly to minimize locking issues.
  Implement proper error handling in custom programs to manage locks gracefully.
  Regularly monitor and review lock situations to identify patterns that may indicate underlying issues in the application or user behavior.
  
  If the problem persists or if you are unsure about releasing locks, it may be advisable to consult with your SAP Basis team or support for further assistance.