How To Fix ED809 - Internal system error with ENQUEUE

SAP Error Message - Details

• Message type: E = Error

• Message class: ED - ABAP/4 Editor messages

• Message number: 809

• Message text: Internal system error with ENQUEUE

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

For a more precise specification of the cause of error, you can use the
menu function <LS> Extras -> Diagnosis </> in transaction SM12.
You can reach transaction SM12 from the SAP Menu by choosing
<LS>Tools -> Administration -> Monitor -> Lock Entries</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ED809 - Internal system error with ENQUEUE ?

  The SAP error message ED809, which indicates an "Internal system error with ENQUEUE," typically arises from issues related to the enqueue mechanism in SAP. The enqueue mechanism is responsible for managing locks on objects in the SAP system to ensure data consistency and integrity during concurrent access.
  Causes of ED809 Error
  
  Lock Table Issues: The lock table may be full or corrupted, leading to issues when trying to set or release locks.
  Database Issues: Problems with the underlying database, such as connectivity issues or database corruption, can trigger this error.
  System Resource Limitations: Insufficient memory or other system resources can lead to failures in the enqueue process.
  Transport Issues: If the error occurs during a transport operation, it may be related to issues with the transport directory or transport requests.
  Software Bugs: There may be bugs in the SAP kernel or specific application components that lead to this error.
  
  Solutions to ED809 Error
  
  
  Check Lock Table:
  
  Use transaction code SM12 to check the lock entries. If the lock table is full, you may need to delete unnecessary locks.
  Monitor the size of the lock table and consider increasing its size if necessary.
  
  
  
  Database Check:
  
  Ensure that the database is running correctly and check for any errors in the database logs.
  Perform a database consistency check and repair if needed.
  
  
  
  System Resources:
  
  Monitor system resources (CPU, memory, disk space) to ensure that the system is not under heavy load.
  If necessary, allocate more resources to the SAP system.
  
  
  
  Restart Enqueue Server:
  
  Sometimes, restarting the enqueue server can resolve temporary issues. This can be done through transaction SM51 or by restarting the SAP application server.
  
  
  
  Check for Software Updates:
  
  Ensure that your SAP system is up to date with the latest patches and updates. Check SAP Notes for any known issues related to the error.
  
  
  
  Review SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may address this specific error. SAP Notes often provide specific fixes or workarounds.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed logs and error messages to facilitate troubleshooting.
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  SM12: Display and manage lock entries.
  SM21: Check system logs for errors.
  SM37: Monitor background jobs for any related issues.
  SM51: Display and manage application servers.
  
  
  
  SAP Notes: Always check the SAP Support Portal for the latest notes related to the error message ED809, as they may provide specific guidance or patches.
  
  
  System Monitoring: Regularly monitor the SAP system for performance issues and potential errors to prevent such issues from occurring in the future.
  
  
  By following these steps, you should be able to diagnose and resolve the ED809 error in your SAP system.