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Message type: E = Error
Message class: /SAPAPO/OPT -
Message number: 018
Message text: Optimization run finished without solution
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/SAPAPO/OPT018
- Optimization run finished without solution ?The SAP error message
/SAPAPO/OPT018 Optimization run finished without solution
typically occurs in the context of SAP Advanced Planning and Optimization (APO) when an optimization run does not yield a feasible solution. This can happen for various reasons, and understanding the cause is crucial for resolving the issue.Causes:
Infeasible Constraints: The optimization model may have constraints that are too strict, making it impossible to find a feasible solution. This can include capacity constraints, demand constraints, or other restrictions that cannot be satisfied simultaneously.
Data Issues: Incorrect or incomplete master data, such as product master data, location data, or resource data, can lead to infeasibility. For example, if the available capacity of a resource is set to zero, the optimizer cannot allocate any production.
Incorrect Planning Parameters: Parameters set in the planning book or in the optimizer profile may not align with the actual data or business processes, leading to conflicts.
Missing or Incorrect Demand: If the demand data is missing or incorrectly defined, the optimizer may not be able to allocate resources effectively.
Modeling Errors: Errors in the way the optimization model is set up, such as incorrect relationships between products or resources, can also lead to this issue.
Solutions:
Review Constraints: Check the constraints defined in the optimization model. Ensure that they are realistic and not overly restrictive. Adjust them if necessary.
Validate Master Data: Ensure that all relevant master data is complete and accurate. This includes checking product availability, resource capacities, and any other relevant data.
Check Planning Parameters: Review the planning parameters and settings in the optimizer profile. Make sure they are appropriate for the current planning scenario.
Analyze Demand Data: Verify that the demand data is correctly defined and available for the planning period. Ensure that there are no gaps or inconsistencies.
Run Diagnostics: Use the diagnostic tools available in SAP APO to analyze the optimization run. This may provide insights into which constraints or data issues are causing the infeasibility.
Test with Simplified Data: If possible, run the optimization with a simplified dataset to identify if specific data points are causing the issue.
Consult Documentation: Refer to SAP documentation or support notes related to the specific version of SAP APO you are using for any known issues or additional troubleshooting steps.
Related Information:
/SAPAPO/OPTIMIZE
to run the optimization and /SAPAPO/OM
to check the master data.By systematically addressing these areas, you should be able to identify the root cause of the /SAPAPO/OPT018
error and implement a solution to ensure successful optimization runs in the future.
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