How To Fix WRF_REF135 - Specify number of modules processed by one task for parallel processing

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_REF - Messages from References for Materials Without History

• Message number: 135

• Message text: Specify number of modules processed by one task for parallel processing

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WRF_REF135 - Specify number of modules processed by one task for parallel processing ?

  The SAP error message WRF_REF135 indicates that there is an issue with the configuration of parallel processing in the SAP system, specifically related to the number of modules that can be processed by one task. This error typically arises in the context of the SAP Advanced Planning and Optimization (APO) module or similar areas where parallel processing is utilized.
  Cause:
  The error occurs when the system is unable to determine the number of modules that can be processed in parallel due to a missing or incorrect configuration. This can happen for several reasons:
  
  Configuration Settings: The settings for parallel processing in the relevant configuration tables may not be set correctly.
  Missing Parameters: Required parameters for parallel processing may not have been defined in the system.
  System Limitations: The system may have limitations on the number of parallel processes that can be executed based on the hardware or software configuration.
  
  Solution:
  To resolve the WRF_REF135 error, you can follow these steps:
  
  
  Check Configuration:
  
  Go to the relevant configuration transaction (e.g., SPRO) and navigate to the settings for parallel processing in the APO module.
  Ensure that the number of modules processed by one task is specified correctly.
  
  
  
  Adjust Parameters:
  
  If you find that the parameters for parallel processing are missing or incorrect, update them to reflect the desired number of modules.
  You may need to consult the SAP documentation or your system administrator for the appropriate values.
  
  
  
  Review System Settings:
  
  Check the system settings to ensure that the hardware and software configurations support the desired level of parallel processing.
  If necessary, consult with your IT department or SAP Basis team to review system performance and limitations.
  
  
  
  Testing:
  
  After making the necessary changes, test the configuration by running the process that previously generated the error to ensure that it completes successfully.
  
  
  
  Consult SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may provide additional guidance or patches related to this error.
  
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for APO and parallel processing for detailed configuration steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have implemented.
  SAP Support: If the issue persists after following the above steps, consider reaching out to SAP Support for further assistance.
  
  By following these steps, you should be able to resolve the WRF_REF135 error and ensure that your SAP system is configured correctly for parallel processing.