How To Fix /SAPAPO/CTM1603 - Demand selection period is not in planning horizon

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/CTM1 -

• Message number: 603

• Message text: Demand selection period is not in planning horizon

Self-Explanatory Message

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• What is the cause and solution for SAP error message /SAPAPO/CTM1603 - Demand selection period is not in planning horizon ?

  The SAP error message /SAPAPO/CTM1603 indicates that the demand selection period specified in your planning process is not within the defined planning horizon. This error typically occurs in the context of SAP Advanced Planning and Optimization (APO), particularly when using the Capable-to-Match (CTM) planning function.
  Cause:
  
  Planning Horizon Configuration: The planning horizon may not be set correctly in the system. The demand selection period you are trying to use falls outside of this horizon.
  Demand Selection Period: The demand selection period you specified in your planning run is not aligned with the planning horizon defined in the system.
  Incorrect Settings: There may be incorrect settings in the planning book or in the CTM profile that lead to this mismatch.
  
  Solution:
  
  
  Check Planning Horizon:
  
  Go to the configuration settings for your planning area and check the planning horizon settings. Ensure that the demand selection period you are trying to use falls within this horizon.
  You can find the planning horizon settings in the SAP APO system under the relevant planning area configuration.
  
  
  
  Adjust Demand Selection Period:
  
  If the demand selection period is indeed outside the planning horizon, adjust it to fall within the defined range.
  This can be done in the planning book or in the CTM profile settings.
  
  
  
  Review CTM Profile:
  
  Check the CTM profile settings to ensure that the demand selection period is correctly defined and that it aligns with the planning horizon.
  Make any necessary adjustments to the CTM profile to ensure compatibility.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation for CTM and planning horizon settings to ensure that you are following best practices and that your configuration is correct.
  
  
  
  Testing:
  
  After making adjustments, run a test planning run to ensure that the error does not occur again.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like /SAPAPO/CTM for running the CTM planning or /SAPAPO/MC62 for checking the planning book settings.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on configuring planning horizons and demand selection periods.
  User Forums: Consider visiting SAP community forums or user groups for additional insights and shared experiences from other users who may have encountered the same issue.
  
  By following these steps, you should be able to resolve the error message /SAPAPO/CTM1603 and ensure that your demand selection period is correctly aligned with the planning horizon.