How To Fix PPH_DD128 - Horizon in future for Product &1 Plant &2 MRP Area &3 cannot be negative

SAP Error Message - Details

• Message type: E = Error

• Message class: PPH_DD - Messages for Demand Driven

• Message number: 128

• Message text: Horizon in future for Product &1 Plant &2 MRP Area &3 cannot be negative

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message PPH_DD128 - Horizon in future for Product &1 Plant &2 MRP Area &3 cannot be negative ?

  The SAP error message PPH_DD128 indicates that there is an issue with the planning horizon for a specific product in a given plant and MRP area. The message states that the planning horizon cannot be negative, which typically means that the system is trying to process a planning period that is set in the past or is incorrectly configured.
  Cause:
  
  Negative Planning Horizon: The planning horizon for the product in the specified plant and MRP area is set to a negative value, which is not allowed.
  Configuration Issues: There may be incorrect settings in the Material Requirements Planning (MRP) configuration for the product or plant.
  Data Entry Errors: Incorrect data entry during the setup of the product or MRP area could lead to this error.
  Master Data Issues: The material master data or MRP area settings may not be correctly defined, leading to inconsistencies.
  
  Solution:
  
  
  Check Planning Horizon Settings:
  
  Go to the MRP area settings for the product in the specified plant and check the planning horizon configuration.
  Ensure that the planning horizon is set to a valid, non-negative value.
  
  
  
  Review Material Master Data:
  
  Access the material master data for the product and verify the MRP views.
  Ensure that all relevant fields are correctly filled out, especially those related to planning and MRP.
  
  
  
  Adjust MRP Area Settings:
  
  If the product is assigned to a specific MRP area, check the settings for that MRP area.
  Make sure that the MRP area is correctly defined and that the planning horizon is appropriate.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources related to MRP and planning horizons to ensure compliance with best practices.
  
  
  
  Testing:
  
  After making adjustments, run a test planning run to see if the error persists.
  Monitor the results to ensure that the planning horizon is now correctly recognized.
  
  
  
  Seek Support:
  
  If the issue persists after checking the above points, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  
  
  Related Information:
  
  MRP Configuration: Understanding how MRP works in SAP and the importance of planning horizons can help prevent similar issues in the future.
  Material Master Data: Familiarize yourself with the fields and settings in the material master that affect MRP.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  By following these steps, you should be able to resolve the PPH_DD128 error and ensure that your planning horizon is correctly configured.