How To Fix SM007 - Error locking. Only display is possible.

SAP Error Message - Details

• Message type: E = Error

• Message class: SM - Address Definition/Administration

• Message number: 007

• Message text: Error locking. Only display is possible.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SM007 - Error locking. Only display is possible. ?

  The SAP error message SM007, which states "Error locking. Only display is possible," typically occurs when a user tries to perform an action that requires exclusive access to a resource (like a transaction or a data object), but that resource is currently locked by another user or process. This can happen in various scenarios, such as when multiple users are trying to edit the same data simultaneously.
  Causes:
  
  Resource Locking: Another user or process has locked the object you are trying to access. This could be due to an ongoing transaction or a previous session that did not release the lock properly.
  Long-running Transactions: If a transaction takes too long to complete, it may hold locks longer than expected, preventing others from accessing the same resource.
  System Configuration: Certain configurations in the SAP system may lead to more frequent locking issues, especially in high-transaction environments.
  User Sessions: If a user has multiple sessions open, it may lead to conflicts in resource locking.
  
  Solutions:
  
  Wait and Retry: Often, the simplest solution is to wait for the other user or process to complete their transaction and release the lock. You can try again after a few minutes.
  Check Lock Entries: Use transaction code SM12 to check for lock entries. You can see which user or process is holding the lock and decide whether to wait or take further action.
  Release Locks: If you have the necessary authorizations, you can manually delete the lock entries in SM12. However, be cautious with this approach, as it may disrupt the other user's work.
  Transaction Monitoring: Use transaction SM21 to check the system log for any errors or warnings that might indicate why the lock is occurring.
  Optimize Transactions: If you frequently encounter locking issues, consider optimizing the transactions or processes that are causing the locks. This may involve reviewing the design of the processes or increasing system resources.
  User Training: Ensure that users are trained on how to properly complete transactions and release locks when they are done.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: Display and manage lock entries.
  SM21: System log for monitoring errors and warnings.
  SM37: Monitor background jobs that may be causing locks.
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to locking problems.
  Performance Tuning: Consider performance tuning of the database and application server to reduce locking contention.
  
  If the problem persists, it may be beneficial to consult with your SAP Basis team or SAP support for further investigation and resolution.