How To Fix /SAPAPO/ND346 - No admissible solution found before time limit reached

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/ND -

• Message number: 346

• Message text: No admissible solution found before time limit reached

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/ND346 - No admissible solution found before time limit reached ?

  The SAP error message /SAPAPO/ND346 No admissible solution found before time limit reached typically occurs in the context of Advanced Planning and Optimization (APO) when the system is unable to find a feasible solution for a planning problem within the specified time limit. This can happen during various planning processes, such as production planning, demand planning, or supply network planning.
  Causes:
  
  Complexity of the Planning Problem: The planning problem may be too complex, involving too many constraints or variables, which makes it difficult for the optimizer to find a solution within the given time frame.
  Inadequate Data: Missing or incorrect master data (e.g., material master, resource master) can lead to infeasibility in the planning process.
  Tight Constraints: If the constraints set in the planning run are too strict, it may prevent the optimizer from finding a feasible solution.
  Insufficient Time Limit: The time limit set for the optimization run may be too short for the complexity of the problem.
  Resource Availability: If resources are not available or are over-allocated, it can lead to infeasibility.
  Configuration Issues: Incorrect configuration settings in the APO system can also lead to this error.
  
  Solutions:
  
  Increase Time Limit: Adjust the time limit for the optimization run to allow the optimizer more time to find a solution.
  Review Constraints: Analyze and potentially relax some of the constraints in the planning run to allow for more flexibility.
  Check Master Data: Ensure that all relevant master data is complete and accurate. This includes checking for valid resources, materials, and production versions.
  Simplify the Problem: If possible, simplify the planning problem by reducing the number of products, locations, or planning levels involved in the run.
  Run a Smaller Scope: Test the planning run with a smaller subset of data to see if a solution can be found, which can help identify specific issues.
  Analyze Logs: Review the optimizer logs for more detailed information about why the solution could not be found. This can provide insights into specific constraints or data issues.
  Consult SAP Notes: Check for any relevant SAP Notes or updates that may address known issues related to this error message.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like /SAPAPO/OPTIMIZE or /SAPAPO/DP to access the planning runs and settings.
  SAP Help Documentation: Refer to the official SAP documentation for Advanced Planning and Optimization for more detailed guidance on configuration and troubleshooting.
  Community Forums: Engage with SAP community forums or support channels for additional insights and shared experiences from other users facing similar issues.
  
  By following these steps, you should be able to diagnose and resolve the issue related to the error message /SAPAPO/ND346.