How To Fix DGEXC402 - Internal error: cannot lock data records

SAP Error Message - Details

• Message type: E = Error

• Message class: DGEXC - Messages for Exceptions to DG Regulations

• Message number: 402

• Message text: Internal error: cannot lock data records

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 DGEXC402 - Internal error: cannot lock data records ?

  The SAP error message DGEXC402: Internal error: cannot lock data records typically indicates that there is an issue with data locking in the SAP system. This error can occur in various scenarios, such as during data updates, when multiple users are trying to access the same data simultaneously, or when there are inconsistencies in the database.
  Causes:
  
  Database Lock Conflicts: Multiple users or processes are trying to access or modify the same data records simultaneously, leading to a lock conflict.
  Long-Running Transactions: A transaction that takes too long to complete may hold locks longer than expected, causing other transactions to fail.
  System Performance Issues: High load on the database or application server can lead to delays in lock acquisition.
  Corrupted Lock Entries: Sometimes, lock entries in the database may become corrupted, leading to this error.
  Configuration Issues: Incorrect configuration settings in the SAP system can also lead to locking issues.
  
  Solutions:
  
  Check for Lock Entries: Use transaction code SM12 to check for existing lock entries. If you find any stale or unnecessary locks, you can delete them (ensure that you have the necessary authorizations and that it is safe to do so).
  Review Long-Running Transactions: Identify and analyze any long-running transactions using transaction code SM50 or SM66. If possible, optimize these transactions to reduce their execution time.
  Increase System Resources: If the system is under heavy load, consider increasing the resources (CPU, memory) allocated to the SAP application server or database server.
  Check for Updates/Patches: Ensure that your SAP system is up to date with the latest patches and updates, as these may contain fixes for known issues related to locking.
  Database Maintenance: Perform regular database maintenance tasks, such as reorganization and optimization, to ensure that the database is performing efficiently.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be specific fixes or recommendations provided by SAP.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: Display and manage lock entries.
  SM50: Monitor active processes on the application server.
  SM66: Monitor processes across all application servers.
  
  
  SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including transaction codes, user actions leading to the error, and any relevant logs.
  
  By following these steps, you should be able to diagnose and resolve the DGEXC402 error in your SAP system.