How To Fix /SAPAPO/OPT_VSR_MSG421 - Parts of freight unit &1 not within the time horizon

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/OPT_VSR_MSG -

• Message number: 421

• Message text: Parts of freight unit &1 not within the time horizon

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/OPT_VSR_MSG421 - Parts of freight unit &1 not within the time horizon ?

  The SAP error message /SAPAPO/OPT_VSR_MSG421 indicates that certain parts of a freight unit are not within the defined time horizon for planning in the SAP Advanced Planning and Optimization (APO) module. This typically occurs during the transportation planning process when the system is unable to schedule or allocate resources for parts of a freight unit because they fall outside the specified planning time frame.
  Cause:
  
  Time Horizon Settings: The planning time horizon may be set too narrowly, causing some freight units to fall outside the allowed planning period.
  Freight Unit Configuration: The freight unit may have been created with dates that do not align with the planning horizon.
  Transportation Planning Parameters: The parameters for transportation planning may not be configured correctly, leading to discrepancies in the time horizon.
  Master Data Issues: There may be issues with master data, such as transportation lanes or resource availability, that affect the planning horizon.
  
  Solution:
  
  
  Adjust Time Horizon Settings:
  
  Go to the configuration settings in SAP APO and review the planning time horizon settings. Extend the time horizon if necessary to include the freight units in question.
  Check the settings in the transportation planning profile and adjust the time horizon accordingly.
  
  
  
  Review Freight Unit Dates:
  
  Check the creation dates and planned dates of the freight units. Ensure that they fall within the adjusted planning time horizon.
  
  
  
  Check Transportation Planning Parameters:
  
  Review the transportation planning parameters in the system. Ensure that they are set up correctly to accommodate the freight units being processed.
  
  
  
  Validate Master Data:
  
  Ensure that all relevant master data (e.g., transportation lanes, resources, and availability) is correctly maintained and does not restrict the planning horizon.
  
  
  
  Reprocess Freight Units:
  
  After making the necessary adjustments, reprocess the freight units to see if the error persists.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes such as /SAPAPO/OPT for transportation planning or /SAPAPO/TS for transportation scheduling to access relevant settings.
  SAP Notes: Check for any SAP Notes related to this error message for additional guidance or patches that may address known issues.
  Documentation: Refer to the SAP APO documentation for detailed information on configuring transportation planning and understanding time horizons.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a consultant who specializes in SAP APO for further assistance.