How To Fix /SAPAPO/CDPSOPT258 - Activity/mode &1 starts outside of the optimization horizon

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/CDPSOPT -

• Message number: 258

• Message text: Activity/mode &1 starts outside of the optimization horizon

Self-Explanatory Message

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• What is the cause and solution for SAP error message /SAPAPO/CDPSOPT258 - Activity/mode &1 starts outside of the optimization horizon ?

  The SAP error message /SAPAPO/CDPSOPT258 Activity/mode &1 starts outside of the optimization horizon typically occurs in the context of SAP Advanced Planning and Optimization (APO), particularly when dealing with production planning and scheduling. This error indicates that a specific activity or mode is scheduled to start outside the defined optimization horizon, which is the time frame within which the system is configured to perform planning and optimization.
  Cause:
  
  Optimization Horizon Settings: The optimization horizon is defined in the planning settings. If an activity is scheduled to start before or after this horizon, the system will raise this error.
  Incorrect Activity Scheduling: The activity or mode may have been scheduled incorrectly, leading to a start time that falls outside the defined optimization horizon.
  Changes in Demand or Supply: Changes in demand or supply that were not accounted for in the planning run can lead to scheduling conflicts.
  Master Data Issues: Incorrect or incomplete master data (like production versions, resources, or activity definitions) can also lead to this error.
  
  Solution:
  
  
  Check Optimization Horizon: Review the optimization horizon settings in the planning book or in the configuration settings. Ensure that the activities you are trying to schedule fall within this horizon.
  
  You can adjust the optimization horizon in the configuration settings of the APO system.
  
  
  
  Adjust Activity Scheduling: If the activity is indeed scheduled outside the optimization horizon, consider rescheduling it to fall within the defined time frame.
  
  This may involve changing the start time of the activity or adjusting the planning parameters.
  
  
  
  Review Planning Parameters: Check the planning parameters and ensure they are set correctly to accommodate the activities you are trying to schedule.
  
  
  Update Master Data: Ensure that all relevant master data is accurate and complete. This includes checking production versions, resources, and any other related data that could affect scheduling.
  
  
  Run a New Planning Run: After making the necessary adjustments, run a new planning run to see if the error persists.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific details on how to configure the optimization horizon and related settings.
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like /SAPAPO/SDP94 (for planning book) or /SAPAPO/CDPSOPT (for optimization settings) to access relevant settings.
  SAP Notes: Check for any SAP Notes related to this error message for additional insights or patches that may address the issue.
  Community Forums: SAP Community and other forums can be useful for finding similar issues faced by other users and their solutions.
  
  By following these steps, you should be able to resolve the error and ensure that your activities are scheduled correctly within the optimization horizon.