How To Fix >A363 - Selection is only allowed if no locks are necessary

SAP Error Message - Details

• Message type: E = Error

• Message class: >A -

• Message number: 363

• Message text: Selection is only allowed if no locks are necessary

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message >A363 - Selection is only allowed if no locks are necessary ?

  The SAP error message A363: Selection is only allowed if no locks are necessary typically occurs when you are trying to execute a selection operation that requires a lock on the database, but the system is unable to do so due to certain conditions. This error is often related to the way the data is being accessed or modified in the database.
  Causes:
  
  Locked Records: The records you are trying to access may be locked by another user or process. This can happen if another transaction is currently modifying the same data.
  Database Locking Mechanism: SAP uses a locking mechanism to ensure data integrity. If a selection operation requires a lock and the system cannot obtain it, this error will be triggered.
  Transaction Type: The type of transaction you are trying to perform may not allow for selection if it involves locks. For example, certain update or delete operations may conflict with selection operations.
  Long-running Transactions: If a transaction is taking too long to complete, it may hold locks longer than expected, causing other operations to fail.
  
  Solutions:
  
  Check for Locks: Use transaction code SM12 to check for any existing locks on the records you are trying to access. If you find locks that are no longer needed, you can release them (if you have the necessary permissions).
  Wait and Retry: If the locks are held by another user, you may need to wait until the other transaction completes and then retry your operation.
  Optimize Transactions: If you are developing or maintaining custom code, ensure that your transactions are optimized to minimize the time locks are held. This can involve breaking down large transactions into smaller ones or ensuring that locks are released as soon as they are no longer needed.
  Review Code Logic: If this error occurs in custom ABAP programs, review the logic to ensure that selections and updates are handled correctly without unnecessary locking.
  Consult Basis Team: If the issue persists, it may be beneficial to consult your SAP Basis team to investigate any underlying issues with the database or locking mechanisms.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM12 (to view and manage locks), SM21 (to check system logs), and ST22 (to check dumps) for troubleshooting.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Documentation: Review SAP documentation regarding database locking and transaction management to better understand how to avoid such issues in the future.
  
  By following these steps, you should be able to diagnose and resolve the issue related to the A363 error message in SAP.