How To Fix /SCMTMS/SCH305 - No free work process for task &1; check settings and retry


SAP Error Message - Details

  • Message type: E = Error

  • Message class: /SCMTMS/SCH -

  • Message number: 305

  • Message text: No free work process for task &1; check settings and retry

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  • Self-Explanatory Message

    Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

    To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

    Unfortunately, there isn't any extra information in this error notice.



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  • What is the cause and solution for SAP error message /SCMTMS/SCH305 - No free work process for task &1; check settings and retry ?

    The SAP error message /SCMTMS/SCH305 No free work process for task &1; check settings and retry typically indicates that there are no available work processes in the SAP system to handle the requested task. This can occur in various scenarios, particularly in the context of SAP Transportation Management (TM) or other background processing tasks.

    Causes:

    1. Work Process Limitations: The SAP system has a limited number of work processes configured. If all work processes are busy handling other tasks, new requests will be queued until a process becomes available.
    2. Long-Running Tasks: If there are long-running tasks or jobs that are consuming work processes, it can lead to a shortage of available processes for new tasks.
    3. Configuration Issues: The configuration of the SAP system may not be optimized for the workload, leading to insufficient work processes.
    4. System Load: High system load due to many concurrent users or background jobs can exhaust the available work processes.
    5. Deadlocks or Resource Contention: Sometimes, deadlocks or resource contention can prevent work processes from being released back to the pool.

    Solutions:

    1. Check Work Process Configuration:

      • Go to transaction RZ10 to check the profile parameters related to work processes (e.g., rdisp/wp_no_dia, rdisp/wp_no_btc, etc.).
      • Increase the number of dialog or background work processes if necessary, based on your system's capacity and workload.
    2. Monitor System Performance:

      • Use transaction SM50 to monitor the status of work processes. Identify any long-running tasks and determine if they can be optimized or terminated.
      • Check transaction SM66 for an overview of all active processes in the system.
    3. Review Background Jobs:

      • Use transaction SM37 to review background jobs. If there are jobs that are taking too long or are stuck, consider canceling or rescheduling them.
    4. Optimize Long-Running Processes:

      • Analyze and optimize any long-running processes or transactions that may be consuming work processes unnecessarily.
    5. System Restart:

      • In some cases, a system restart may help to clear any stuck processes and free up resources.
    6. Check for Deadlocks:

      • Investigate if there are any deadlocks or resource contention issues that need to be resolved.
    7. Consult SAP Notes:

      • Check the SAP Support Portal for any relevant SAP Notes that may address specific issues related to work processes or the error message.

    Related Information:

    • Transaction Codes:
      • RZ10: Profile parameters
      • SM50: Work process overview
      • SM66: Global work process overview
      • SM37: Background job monitoring
    • SAP Documentation: Refer to SAP Help documentation for detailed information on work process management and performance tuning.
    • Performance Tuning: Consider engaging with SAP Basis administrators for performance tuning and optimization strategies tailored to your specific environment.

    By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.

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