How To Fix /SAPAPO/OM_ERROR2339 - Two constraints that exclude each other or create unrealizable situation

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/OM_ERROR2 -

• Message number: 339

• Message text: Two constraints that exclude each other or create unrealizable situation

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/OM_ERROR2339 - Two constraints that exclude each other or create unrealizable situation ?

  The SAP error message /SAPAPO/OM_ERROR2339 indicates that there are two constraints in your planning model that are mutually exclusive or create an unrealizable situation. This typically occurs in the context of Advanced Planning and Optimization (APO) within SAP, particularly when dealing with planning scenarios that involve constraints on resources, production, or demand.
  Cause:
  
  
  Conflicting Constraints: The most common cause of this error is that there are constraints defined in the planning model that cannot coexist. For example, if one constraint requires a resource to be available at a certain time while another constraint requires that same resource to be unavailable at that same time, this will lead to an unrealizable situation.
  
  
  Inconsistent Data: Sometimes, the data used in the planning model may be inconsistent or incorrect, leading to conflicting constraints. This can happen if there are changes in the master data or if the planning parameters are not set correctly.
  
  
  Logical Errors in Planning: The logic used in the planning process may have errors, such as incorrect definitions of production sequences, lead times, or capacity constraints.
  
  
  Solution:
  
  
  Review Constraints: Examine the constraints defined in your planning model. Look for any that may conflict with each other. This may involve checking the resource availability, production schedules, and any other constraints that have been set.
  
  
  Adjust Constraints: Modify the conflicting constraints to ensure they can coexist. This may involve changing the timing of resource availability, adjusting production quantities, or redefining the constraints themselves.
  
  
  Check Master Data: Ensure that all relevant master data (e.g., resources, products, production versions) is accurate and up to date. Inconsistencies in master data can lead to conflicting constraints.
  
  
  Run Consistency Checks: Use the consistency check tools available in SAP APO to identify and resolve any issues in the planning model. This can help pinpoint the exact constraints that are causing the problem.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on the constraints you are working with. This can provide insights into how to properly define and manage constraints in your planning model.
  
  
  Testing: After making adjustments, run test scenarios to ensure that the changes have resolved the issue and that the planning model is functioning as expected.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  APO Documentation: Review the SAP APO documentation for best practices on defining constraints and managing planning scenarios.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.