How To Fix /SAPAPO/CDPSOPT373 - Latest start or end times as hard constraints

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/CDPSOPT -

• Message number: 373

• Message text: Latest start or end times as hard constraints

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/CDPSOPT373 - Latest start or end times as hard constraints ?

  The SAP error message /SAPAPO/CDPSOPT373 typically occurs in the context of SAP Advanced Planning and Optimization (APO), particularly when dealing with production planning and scheduling. This error indicates that the latest start or end times for a production order or activity are being treated as hard constraints, which can lead to infeasibility in the planning process.
  Cause:
  The error is usually caused by one or more of the following reasons:
  
  
  Hard Constraints Configuration: The planning settings may have been configured to treat the latest start or end times as hard constraints, which means that the system cannot schedule activities outside of these defined times.
  
  
  Infeasible Scheduling: The defined latest start or end times may not allow for the required processing time or may conflict with other scheduling constraints, leading to an infeasible situation.
  
  
  Resource Availability: The resources required for the production process may not be available within the defined time frame, causing a conflict with the hard constraints.
  
  
  Order Dependencies: There may be dependencies between orders that are not being met due to the hard constraints set on the latest start or end times.
  
  
  Solution:
  To resolve this error, consider the following steps:
  
  
  Review Constraints: Check the latest start and end times set for the production orders or activities. If they are too restrictive, consider adjusting them to allow for more flexibility in scheduling.
  
  
  Adjust Planning Parameters: If the latest start or end times are necessary, review the planning parameters and settings in the APO system to ensure they are configured correctly. You may need to adjust the settings to allow for soft constraints instead of hard constraints.
  
  
  Resource Allocation: Ensure that the necessary resources are available during the defined time frames. If resources are not available, consider rescheduling or reallocating resources to meet the demand.
  
  
  Check Dependencies: Review any dependencies between orders or activities. Ensure that all dependencies are accounted for and that they do not conflict with the hard constraints.
  
  
  Use Planning Tools: Utilize the planning tools available in SAP APO, such as the optimizer or heuristic methods, to find a feasible solution that respects the constraints while optimizing the overall schedule.
  
  
  Consult Documentation: Refer to SAP documentation or support resources for specific guidance on handling this error message, as there may be additional context or updates relevant to your version of SAP APO.
  
  
  Related Information:
  
  SAP Notes: Check for any SAP Notes related to this error message for patches or updates that may address known issues.
  Transaction Codes: Familiarize yourself with relevant transaction codes in SAP APO, such as /SAPAPO/OPTIMIZE for running the optimizer or /SAPAPO/CDPS for accessing the detailed planning screen.
  Training and Support: Consider training sessions or consulting with SAP experts if this error is a recurring issue in your planning processes.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.