How To Fix KK181 - Reference cost estimate contains cycles and will not be copied

SAP Error Message - Details

• Message type: E = Error

• Message class: KK -

• Message number: 181

• Message text: Reference cost estimate contains cycles and will not be copied

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 KK181 - Reference cost estimate contains cycles and will not be copied ?

  The SAP error message KK181 indicates that there is a cycle in the reference cost estimate that prevents it from being copied. This typically occurs in the context of cost estimating in SAP Controlling (CO) when you are trying to copy a cost estimate that has circular references, which can lead to infinite loops in calculations.
  Cause:
  
  Circular References: The most common cause of this error is that the cost estimate you are trying to copy contains circular references. This means that one or more cost elements or activities reference each other in a way that creates a loop.
  Incorrect Configuration: There may be issues with the configuration of cost elements, cost centers, or activity types that lead to these cycles.
  Data Integrity Issues: There could be data integrity issues in the master data that lead to cycles in the cost estimate.
  
  Solution:
  
  Analyze the Cost Estimate: Review the cost estimate that you are trying to copy. Check for any circular references in the cost components, cost elements, or activities. You can do this by examining the structure of the cost estimate in detail.
  Use the Cost Estimate Display: Use transaction code CK11N (Create Cost Estimate) or CK13N (Display Cost Estimate) to analyze the cost estimate. Look for any references that point back to themselves or create a loop.
  Adjust Cost Elements: If you identify any circular references, you will need to adjust the cost elements or activities involved. This may involve changing the way costs are allocated or restructuring the cost estimate.
  Check Configuration: Ensure that the configuration of your cost elements and cost centers is correct and does not lead to cycles. This may involve consulting with your SAP configuration team.
  Test with a Simplified Estimate: If possible, create a simplified version of the cost estimate without the complex references and see if it can be copied successfully. This can help isolate the issue.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CK11N, CK13N, CK40N (for cost estimate analysis), and CK24 (for cost estimate revaluation).
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on best practices for cost estimates.
  Documentation: Review SAP documentation on cost estimating and controlling to understand how to structure cost estimates effectively and avoid circular references.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a consultant who specializes in SAP Controlling for further assistance.