How To Fix ARUN_MAIN100 - Lock error; sales order &1 locked by user &2

SAP Error Message - Details

• Message type: E = Error

• Message class: ARUN_MAIN -

• Message number: 100

• Message text: Lock error; sales order &1 locked by user &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message ARUN_MAIN100 - Lock error; sales order &1 locked by user &2 ?

  The SAP error message ARUN_MAIN100 indicates that a sales order (identified by the number &1) is currently locked by another user (identified by user &2). This typically occurs when multiple users attempt to access or modify the same sales order simultaneously, leading to a lock situation to prevent data inconsistencies.
  Cause:
  
  Concurrent Access: Another user is currently editing or viewing the sales order.
  Unreleased Locks: A previous session may not have released the lock due to an error or improper termination.
  Long-running Transactions: A transaction that takes a long time to complete can hold the lock for an extended period.
  Background Jobs: Sometimes, background jobs may also lock records if they are processing data related to the sales order.
  
  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 Locking User: Use transaction SM12 (Display and Delete Locks) to identify the user who is holding the lock. You can check the lock entries and see if the user is still active.
  Contact the Locking User: If possible, communicate with the user who has the lock to see if they can release it.
  Release the Lock: If the locking user is no longer active or if the lock is stale, an administrator can delete the lock entry in transaction SM12. However, this should be done with caution to avoid data inconsistencies.
  Check for Background Jobs: If a background job is causing the lock, you may need to wait for it to complete or check its status in transaction SM37 (Job Monitoring).
  Review System Performance: If locks are frequent, it may be worth reviewing system performance and user access patterns to optimize the process.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage lock entries.
  SM37: To monitor background jobs.
  SE11: To check the data dictionary for the sales order table (usually VBAK for header data and VBAP for item data).
  
  
  Lock Mechanism: SAP uses a locking mechanism to ensure data integrity. Understanding how locks work in SAP can help in troubleshooting similar issues in the future.
  User Training: Educating users on how to properly exit transactions and avoid long-running locks can help reduce the frequency of this error.
  
  If the issue persists or if you encounter frequent locking issues, it may be beneficial to consult with your SAP Basis team or system administrator for further analysis and potential system tuning.