How To Fix WRF_WTAD809 - Number of items per process is empty -> no parallel processing

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_WTAD - Messages Additionals RTFASH

• Message number: 809

• Message text: Number of items per process is empty -> no parallel processing

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 WRF_WTAD809 - Number of items per process is empty -> no parallel processing ?

  The SAP error message WRF_WTAD809 indicates that the system has encountered an issue where the number of items per process is empty, which prevents parallel processing from occurring. This error typically arises in the context of SAP's Advanced Planning and Optimization (APO) or similar modules where batch processing is utilized.
  Cause:
  
  Configuration Issues: The error may stem from incorrect configuration settings in the APO system, particularly in the settings related to parallel processing.
  Data Issues: If the data being processed does not contain any items or if the items are not properly defined, the system may not be able to determine how to process them in parallel.
  Custom Code: If there are custom enhancements or modifications in the system, they may inadvertently lead to this error by not properly handling item counts.
  System Limitations: The system may have reached a limit in terms of processing capacity or configuration that prevents it from executing parallel processes.
  
  Solution:
  
  Check Configuration: Review the configuration settings related to parallel processing in the APO system. Ensure that the settings for the number of items per process are correctly defined.
  Data Validation: Validate the data being processed to ensure that there are items available for processing. Check for any missing or incorrectly defined items.
  Review Custom Code: If there are any custom developments, review the code to ensure that it correctly handles item counts and does not inadvertently lead to empty counts.
  System Logs: Check the system logs for any additional error messages or warnings that may provide more context about the issue.
  SAP Notes: Search for relevant SAP Notes that may address this specific error. SAP frequently releases notes that provide fixes or workarounds for known issues.
  Contact SAP Support: If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. They may provide insights specific to your system configuration and version.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in SAP APO, such as /SAPAPO/SDP94 for planning and /SAPAPO/MC90 for monitoring.
  Documentation: Review SAP documentation related to parallel processing in APO to understand the expected configurations and limitations.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the root cause of the WRF_WTAD809 error and implement a suitable solution.