How To Fix OE809 - No parallel use of application objects allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: OE - IS-Oil: ITA/TPI messages

• Message number: 809

• Message text: No parallel use of application objects allowed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message OE809 - No parallel use of application objects allowed ?

  The SAP error message OE809 "No parallel use of application objects allowed" typically occurs when there is an attempt to access or modify an application object that is already being processed by another transaction or user. This is a concurrency control mechanism in SAP to prevent data inconsistencies and ensure that only one user can modify a particular object at a time.
  Causes:
  
  Concurrent Access: Multiple users or processes are trying to access the same application object simultaneously.
  Long-Running Transactions: A transaction that takes a long time to complete may lock the object, preventing others from accessing it.
  Lock Entries: The system may have lock entries that are preventing access to the object.
  Background Jobs: A background job may be running that is holding a lock on the object.
  
  Solutions:
  
  Wait and Retry: If the error is due to another user or process currently accessing the object, waiting for a short period and then retrying the operation may resolve the issue.
  Check Lock Entries: Use transaction code SM12 to check for lock entries. If you find a lock that is no longer needed, you can delete it (if you have the necessary authorizations).
  Identify Long-Running Transactions: Use transaction code SM66 or SM50 to monitor active processes and identify any long-running transactions that may be causing the lock.
  Review Background Jobs: Check if there are any background jobs running that might be locking the object. You can use transaction code SM37 to monitor background jobs.
  Consult with Colleagues: If you are in a multi-user environment, check with your colleagues to see if they are working on the same object.
  System Configuration: In some cases, the system configuration may need to be reviewed to ensure that it is set up to handle concurrent access appropriately.
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: Display and manage lock entries.
  SM50: Monitor active processes.
  SM66: Monitor global processes.
  SM37: Monitor background jobs.
  
  
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message. You can search for relevant notes in the SAP Support Portal.
  
  
  Documentation: Review SAP documentation related to concurrency control and locking mechanisms to better understand how SAP handles simultaneous access to application objects.
  
  
  If the issue persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.