/CDBASIS/MSG042 - Report is locked by user &1! Only a single instance can be executed.

SAP Error Message - Details

• Message type: E = Error

• Message class: /CDBASIS/MSG -

• Message number: 042

• Message text: Report is locked by user &1! Only a single instance can be executed.

Self-Explanatory Message

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AnswerBot

• What is the cause and solution for SAP error message /CDBASIS/MSG042 - Report is locked by user &1! Only a single instance can be executed. ?

  The SAP error message /CDBASIS/MSG042 Report is locked by user &1! Only a single instance can be executed. indicates that a particular report or transaction is currently being executed by another user, and as a result, you cannot run the same report simultaneously. This is a common locking mechanism in SAP to prevent data inconsistencies and ensure that only one instance of a report is processed at a time.
  Cause:
  
  Concurrent Execution: Another user is currently executing the same report.
  Long-Running Report: The report may take a long time to execute, causing it to remain locked for an extended period.
  User Session: The report may have been started in a different session by the same user, leading to a lock.
  
  Solution:
  
  
  Wait and Retry: If the report is being executed by another user, you may need to wait until that user completes the report execution. You can periodically check if the report is still running.
  
  
  Identify the Locking User: You can use transaction code SM12 to check for locks. Enter the report name or relevant details to find out which user is holding the lock. If necessary, you can contact that user to see if they can release the report.
  
  
  Terminate the Session: If you have the necessary authorizations and it is appropriate to do so, you can terminate the session of the user who is running the report. This can be done using transaction code SM50 or SM66 to find the process and then terminate it.
  
  
  Check for Background Jobs: If the report is running as a background job, you can check the status of background jobs using transaction code SM37. If the job is stuck or taking too long, you may need to cancel it.
  
  
  Review Report Design: If this is a frequent issue, consider reviewing the report design to optimize performance or to allow for parallel processing if applicable.
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM12: To view and manage locks.
  SM50: To monitor active processes.
  SM66: To monitor processes across the entire system.
  SM37: To check background job status.
  
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific report or transaction you are trying to execute.
  
  
  Documentation: Review the documentation for the specific report to understand its execution requirements and any known limitations regarding concurrent execution.
  
  
  By following these steps, you should be able to resolve the locking issue and successfully execute the report.