How To Fix MA879 - No generated technical planning period unit exists for &

SAP Error Message - Details

• Message type: E = Error

• Message class: MA - Sales and Operations Planning

• Message number: 879

• Message text: No generated technical planning period unit exists for &

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MA879 - No generated technical planning period unit exists for & ?

  The SAP error message MA879 indicates that there is no generated technical planning period unit for the specified object (represented by the & symbol). This error typically occurs in the context of Material Requirements Planning (MRP) or production planning when the system is unable to find a valid planning period for a material or resource.
  Cause:
  
  Missing Planning Periods: The planning period for the material or resource has not been defined or generated in the system.
  Incorrect Configuration: The configuration settings for the planning period may not be set up correctly in the system.
  Master Data Issues: The material master or resource master data may be incomplete or incorrectly maintained.
  Planning Version Issues: The planning version being used may not have the necessary planning periods defined.
  
  Solution:
  
  
  Check Planning Periods:
  
  Go to the relevant transaction (e.g., MD04 for stock/requirements list) and check if the planning periods are defined for the material in question.
  If not, you may need to generate the planning periods using the appropriate transaction (e.g., MD61 for planning).
  
  
  
  Review Configuration:
  
  Check the configuration settings in the Customizing (SPRO) for MRP and ensure that the planning periods are correctly defined.
  Ensure that the planning strategy and other related settings are correctly configured.
  
  
  
  Update Master Data:
  
  Review the material master data (transaction MM03) and ensure that all necessary fields related to planning are filled out correctly.
  Check the MRP views and ensure that the planning parameters are set correctly.
  
  
  
  Check Planning Version:
  
  Ensure that the planning version you are using is active and has the necessary planning periods defined.
  You can check this in the planning version settings (transaction OMD0).
  
  
  
  Re-run MRP:
  
  After making the necessary adjustments, re-run the MRP process to see if the error persists.
  
  
  
  Related Information:
  
  Transaction Codes: MD04 (Stock/Requirements List), MD61 (Planning), MM03 (Display Material), OMD0 (Planning Version).
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Refer to SAP Help documentation for MRP and planning periods for more detailed information on configuration and setup.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or refer to SAP community forums for further assistance.