How To Fix UJO_WB_EXCEPTION011 - Error obtaining concurrency lock (&1)

SAP Error Message - Details

• Message type: E = Error

• Message class: UJO_WB_EXCEPTION - Message Class for Write-Back

• Message number: 011

• Message text: Error obtaining concurrency lock (&1)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message UJO_WB_EXCEPTION011 - Error obtaining concurrency lock (&1) ?

  The SAP error message UJO_WB_EXCEPTION011 indicates that there is an issue with obtaining a concurrency lock in the context of a job or workflow. This error typically arises when multiple processes or users are trying to access the same resource simultaneously, leading to a conflict.
  Cause:
  
  
  Concurrency Issues: The most common cause is that another process is currently holding the lock on the resource you are trying to access. This can happen if:
  
  A long-running job is still executing.
  Another user or process is trying to access the same job or workflow.
  There is a deadlock situation where two or more processes are waiting for each other to release locks.
  
  
  
  System Performance: If the system is under heavy load, it may take longer for locks to be released, leading to timeouts.
  
  
  Configuration Issues: Incorrect configuration of job scheduling or workflow management can also lead to locking issues.
  
  
  Solution:
  
  
  Wait and Retry: Often, simply waiting for a few moments and then retrying the operation can resolve the issue, especially if it was caused by a temporary lock.
  
  
  Check Running Jobs: Use transaction codes like SM37 (Job Monitoring) to check if there are any jobs currently running that might be holding the lock. If you find a job that is stuck or taking too long, you may need to terminate it.
  
  
  Review Lock Entries: You can check the lock entries using transaction SM12 to see if there are any locks that are not being released. If you find stale locks, you may need to delete them, but be cautious as this can affect other users.
  
  
  Increase Timeout Settings: If the issue is related to system performance, consider increasing the timeout settings for locks in the system configuration.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant notes or patches that might address this specific error.
  
  
  System Performance Tuning: If the system is frequently experiencing performance issues, consider reviewing and optimizing system resources, such as memory and CPU allocation.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes like SM37 (Job Monitoring), SM12 (Lock Entries), and SM21 (System Log) for troubleshooting.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  Documentation: Review SAP documentation related to job scheduling and workflow management for best practices and configuration guidelines.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.