How To Fix /SAPAPO/DC_MSG221 - Start period &1 must be shorter than or equal to period horizon &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/DC_MSG -

• Message number: 221

• Message text: Start period &1 must be shorter than or equal to period horizon &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/DC_MSG221 - Start period &1 must be shorter than or equal to period horizon &2 ?

  The SAP error message /SAPAPO/DC_MSG221 indicates that there is an issue with the planning period settings in the Advanced Planning and Optimization (APO) module. Specifically, the error states that the "Start period &1 must be shorter than or equal to period horizon &2." This means that the start period you are trying to use for a planning run exceeds the defined period horizon.
  Cause:
  
  Period Horizon Configuration: The period horizon is a setting that defines the maximum time frame for which planning can be executed. If the start period you are trying to use is beyond this horizon, the system will throw this error.
  Incorrect Planning Parameters: The parameters set for the planning run may not align with the defined period horizon.
  Data Entry Error: There may be a mistake in the input values for the planning run, such as entering a start period that is not valid.
  
  Solution:
  
  
  Check Period Horizon Settings:
  
  Navigate to the configuration settings for the period horizon in the APO system.
  Ensure that the period horizon is set correctly and that it encompasses the start period you are trying to use.
  
  
  
  Adjust Start Period:
  
  If the period horizon cannot be changed, adjust the start period to ensure it falls within the defined period horizon.
  
  
  
  Review Planning Parameters:
  
  Review the planning parameters you are using for the planning run. Make sure they are correctly set and do not exceed the period horizon.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation or help resources for more details on configuring period horizons and planning parameters.
  
  
  
  Testing:
  
  After making adjustments, perform a test run to ensure that the error does not reoccur.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like /SAPAPO/MC90 (for planning book settings) or /SAPAPO/DP (for demand planning) to check and adjust settings.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  User Roles: Ensure that you have the necessary permissions to make changes to the planning settings in the APO system.
  
  By following these steps, you should be able to resolve the error and successfully execute your planning run in SAP APO.