How To Fix CNV_10940_MSG558 - Send error while searching free background work processes

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10940_MSG - Message Class for Report Variant Scan

• Message number: 558

• Message text: Send error while searching free background work processes

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10940_MSG558 - Send error while searching free background work processes ?

  The SAP error message CNV_10940_MSG558 typically indicates an issue related to the availability of background work processes when trying to execute a task that requires background processing. This error is often encountered during data migration or conversion processes, particularly when using SAP's Data Migration tools.
  Cause:
  
  
  Insufficient Background Work Processes: The system may not have enough background work processes available to handle the request. This can happen if:
  
  The number of background jobs exceeds the configured limit.
  Background processes are busy or not available due to system load or configuration.
  
  
  
  Configuration Issues: The configuration settings for background processing may not be optimal, leading to a shortage of available processes.
  
  
  System Load: High system load or resource contention can lead to delays in processing background jobs, causing the system to report that no free processes are available.
  
  
  Job Scheduling Conflicts: There may be conflicts with other scheduled jobs that are consuming all available background work processes.
  
  
  Solution:
  
  
  Check Background Work Process Configuration:
  
  Go to transaction SM50 or SM66 to monitor the status of work processes.
  Check the configuration in transaction RZ10 or RZ11 to ensure that the number of background work processes is set appropriately. You may need to increase the number of background work processes if they are insufficient.
  
  
  
  Monitor and Manage Background Jobs:
  
  Use transaction SM37 to check for long-running or stuck background jobs. If you find any, consider terminating them if they are not needed.
  Review the job scheduling to ensure that there are no conflicts or excessive jobs scheduled at the same time.
  
  
  
  System Performance:
  
  Analyze system performance using transaction ST03N or ST04 to identify any bottlenecks or resource issues.
  If the system is under heavy load, consider scheduling the data migration tasks during off-peak hours.
  
  
  
  Restart Background Processing:
  
  Sometimes, simply restarting the background processing can resolve temporary issues. You can do this by stopping and starting the SAP instance.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM50: Monitor work processes.
  SM37: Monitor background jobs.
  RZ10/RZ11: Profile parameters for system configuration.
  ST03N: Workload analysis.
  ST04: Database performance analysis.
  
  
  
  SAP Documentation: Refer to the official SAP documentation for background processing and job scheduling for more detailed information on configuration and management.
  
  
  If the issue persists after trying the above solutions, it may be beneficial to engage with SAP support for further assistance.