How To Fix /SCMTMS/SCH_UPLOAD301 - Parallel processing active (tasks: &1, package size: &2)

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCMTMS/SCH_UPLOAD -

• Message number: 301

• Message text: Parallel processing active (tasks: &1, package size: &2)

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCMTMS/SCH_UPLOAD301 - Parallel processing active (tasks: &1, package size: &2) ?

  The SAP error message /SCMTMS/SCH_UPLOAD301 Parallel processing active (tasks: &1, package size: &2) typically occurs in the context of SAP Transportation Management (TM) when there is an issue related to the parallel processing of tasks during the upload of scheduling data. This error indicates that the system is trying to process multiple tasks in parallel, but there may be a configuration or resource issue that is preventing it from doing so effectively.
  Cause:
  
  Configuration Issues: The parallel processing settings in the SAP system may not be configured correctly, leading to conflicts or resource limitations.
  Resource Limitations: The system may not have enough resources (e.g., memory, CPU) to handle the specified number of parallel tasks.
  Task Overload: The number of tasks being processed in parallel may exceed the system's capacity or the defined limits.
  Locking Issues: There may be locks on certain resources or data that prevent parallel processing from occurring smoothly.
  
  Solution:
  
  Check Configuration: Review the configuration settings for parallel processing in the SAP TM system. Ensure that the settings for the number of parallel tasks and package size are appropriate for your system's capabilities.
  Adjust Parallel Processing Parameters: If necessary, adjust the parameters for parallel processing in the relevant configuration settings. This may involve reducing the number of parallel tasks or the package size.
  Monitor System Resources: Use transaction codes like ST02 (Tune Summary) or ST03N (Workload Analysis) to monitor system performance and resource usage. If the system is under heavy load, consider optimizing performance or increasing resources.
  Check for Locks: Use transaction SM12 to check for any locks that may be affecting the processing of tasks. If there are unnecessary locks, they can be released.
  Review Logs: Check the application logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  Consult SAP Notes: Look for relevant SAP Notes that may address this specific error message or provide guidance on best practices for parallel processing in SAP TM.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for Transportation Management for detailed information on configuration and best practices.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Performance Tuning: Consider conducting a performance tuning exercise to optimize the overall performance of the SAP TM system, which may help alleviate issues related to parallel processing.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.