How To Fix CLASSIFICATION_TOOL102 - Circular reference: The type group &1 is contained group &2.

SAP Error Message - Details

• Message type: E = Error

• Message class: CLASSIFICATION_TOOL - Classification tool

• Message number: 102

• Message text: Circular reference: The type group &1 is contained group &2.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CLASSIFICATION_TOOL102 - Circular reference: The type group &1 is contained group &2. ?

  The SAP error message CLASSIFICATION_TOOL102 indicates that there is a circular reference in the classification system. Specifically, it means that a type group (let's call it &1) is contained within another type group (&2), which in turn contains the first type group, creating a loop or circular dependency.
  Cause:
  
  Circular Reference: The primary cause of this error is the existence of a circular reference in the classification hierarchy. This can happen if you have defined type groups in such a way that they reference each other in a loop.
  Incorrect Configuration: It may also arise from incorrect configuration or design of the classification system, where the relationships between type groups are not properly defined.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify the Circular Reference:
  
  Use transaction codes like CL02 (Change Class) or CL03 (Display Class) to check the definitions of the type groups involved.
  Look for the relationships between the type groups to identify where the circular reference occurs.
  
  
  
  Modify the Type Groups:
  
  Once you identify the circular reference, you will need to modify the relationships between the type groups to eliminate the circular dependency.
  This may involve removing or changing the containment relationships so that one type group does not reference another in a way that creates a loop.
  
  
  
  Test the Changes:
  
  After making the necessary changes, test the classification tool again to ensure that the error no longer occurs.
  
  
  
  Documentation:
  
  Document the changes made to the type groups and the reasoning behind them to prevent similar issues in the future.
  
  
  
  Related Information:
  
  Classification System: The classification system in SAP is used to categorize objects and manage their attributes. Understanding how type groups and classes interact is crucial for effective configuration.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. Sometimes, SAP provides specific guidance or fixes for such issues.
  SAP Community: Engaging with the SAP Community can provide insights from other users who may have encountered similar issues.
  
  If the problem persists after following these steps, consider reaching out to SAP support for further assistance.