How To Fix BC_DATAMODEL_SERVICE152 - This flight entry is already locked (table SFLIGHT)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 152

• Message text: This flight entry is already locked (table SFLIGHT)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message BC_DATAMODEL_SERVICE152 - This flight entry is already locked (table SFLIGHT) ?

  The SAP error message BC_DATAMODEL_SERVICE152 indicates that a specific flight entry in the SFLIGHT table is currently locked, preventing any modifications or updates to that entry. This typically occurs in a multi-user environment where multiple users or processes are trying to access or modify the same data simultaneously.
  Cause:
  
  Concurrent Access: Another user or process is currently editing or has locked the flight entry in the SFLIGHT table.
  Transaction Lock: A transaction that was initiated by a user or program has not been completed, leaving the entry in a locked state.
  Long-running Transactions: If a transaction takes too long to complete, it can lead to locks being held longer than necessary.
  Database Locking Mechanism: SAP uses a locking mechanism to ensure data integrity, which can lead to locks if not managed properly.
  
  Solution:
  
  Wait and Retry: If the lock is temporary, waiting for a few moments and then retrying the operation 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 on the SFLIGHT entry. You can then communicate with that user or process to resolve the conflict.
  Release the Lock: If you have the necessary authorizations, you can manually delete the lock entry in SM12. However, this should be done with caution, as it may lead to data inconsistency if the other transaction is still in progress.
  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 released properly after transactions are completed.
  
  Related Information:
  
  Lock Management: Understanding how SAP handles locks can help in troubleshooting. Locks can be either exclusive (write locks) or shared (read locks).
  Transaction Codes:
  
  SM12: To view and manage lock entries.
  SM66: To monitor active processes and identify long-running transactions.
  SM21: To check system logs for any related errors or warnings.
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Training: Ensure that users are trained on proper transaction handling to minimize locking issues.
  
  By following these steps, you should be able to diagnose and resolve the issue related to the BC_DATAMODEL_SERVICE152 error message in SAP.