How To Fix CNV_OM_MWBGEN027 - Generation of WS item &1 already in progress. Skipping!

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_OM_MWBGEN - SLO: Messages for Object Based MBW Generation

• Message number: 027

• Message text: Generation of WS item &1 already in progress. Skipping!

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_OM_MWBGEN027 - Generation of WS item &1 already in progress. Skipping! ?

  The SAP error message CNV_OM_MWBGEN027 indicates that the generation of a work item (WS item) is already in progress for a specific item, and therefore, the system is skipping the current request. This error typically occurs in the context of data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools.
  Cause:
  
  Concurrent Processing: The most common cause of this error is that there is already a process running that is generating the same work item. This can happen if multiple sessions or processes are trying to generate the same item simultaneously.
  Locking Mechanism: SAP uses a locking mechanism to prevent data inconsistencies. If one process has locked the item for generation, other processes will be unable to access it until the lock is released.
  Long-running Processes: If a previous generation process is taking longer than expected, it may lead to this error for subsequent requests.
  
  Solution:
  
  Check Running Processes: Use transaction codes like SM50 or SM66 to check for any active processes that might be generating the same WS item. If you find a process that is stuck or taking too long, you may need to investigate or terminate it.
  Wait for Completion: If you identify that a process is legitimately running, you may need to wait for it to complete before attempting to generate the WS item again.
  Review Logs: Check the logs for any additional error messages or warnings that might provide more context about why the generation is taking longer than expected.
  Restart the Process: If you suspect that the process has failed or is stuck, you may need to restart the data migration or conversion process.
  Increase Resources: If this is a recurring issue, consider increasing system resources (CPU, memory) to handle concurrent processes more effectively.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM37 (Job Monitoring) to check for background jobs that may be related to the WS item generation.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide patches/updates that could resolve underlying issues.
  Documentation: Review the documentation for the specific migration or conversion tool you are using to ensure that you are following best practices and guidelines.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance, providing them with detailed logs and context about the error.