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

/SAPAPO/CDPSOPT258 - Overview

• 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

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• 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