How To Fix /SAPAPO/SNPOPT229 - Setup matrix &1: Triangle inequality for setup costs not fulfiled.

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/SNPOPT -

• Message number: 229

• Message text: Setup matrix &1: Triangle inequality for setup costs not fulfiled.

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/SNPOPT229 - Setup matrix &1: Triangle inequality for setup costs not fulfiled. ?

  The SAP error message /SAPAPO/SNPOPT229 indicates that there is an issue with the setup matrix in the Advanced Planning and Optimization (APO) module, specifically related to the triangle inequality for setup costs. This error typically arises when the setup costs defined in the setup matrix do not adhere to the triangle inequality principle, which is a mathematical condition that must be satisfied for certain types of optimization problems.
  Cause:
  The triangle inequality states that for any three points (or setups in this case), the direct cost from point A to point C should not exceed the cost from A to B plus the cost from B to C. In the context of setup costs, this means that if you have three different production setups, the cost of switching directly from the first to the third should not be greater than the cost of switching from the first to the second plus the cost of switching from the second to the third.
  If this condition is violated, it can lead to inefficiencies in planning and scheduling, which is why SAP raises this error.
  Solution:
  To resolve this error, you need to review and adjust the setup costs in your setup matrix. Here are the steps you can take:
  
  
  Review the Setup Matrix: Go to the setup matrix configuration in SAP APO and check the setup costs defined between different combinations of resources or products.
  
  
  Check Triangle Inequality: For each combination of setups, verify that the triangle inequality holds. For setups A, B, and C, ensure that:
  
  Cost(A to C) = Cost(A to B) + Cost(B to C)
  
  
  
  Adjust Costs: If you find any violations of the triangle inequality, adjust the setup costs accordingly. This may involve increasing the direct setup cost or decreasing the intermediary setup costs to ensure compliance.
  
  
  Test Changes: After making adjustments, test the setup matrix again to ensure that the error no longer appears.
  
  
  Documentation: Document any changes made to the setup costs for future reference and to maintain clarity in your planning processes.
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like /SAPAPO/SDP94 (for setup matrix maintenance) to access and modify the setup matrix.
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or updates related to this error.
  Consult Documentation: Refer to the SAP APO documentation for detailed explanations of setup matrices and the triangle inequality principle.
  
  By following these steps, you should be able to resolve the error and ensure that your setup matrix is correctly configured for optimal planning and scheduling in SAP APO.