How To Fix G0128 - CG/CU &1 may not be assigned to itself

SAP Error Message - Details

• Message type: E = Error

• Message class: G0 - Messages for SAP Consolidation

• Message number: 128

• Message text: CG/CU &1 may not be assigned to itself

What causes this issue?

The CG/CU &V1& cannot be assigned to itself (recursion).

System Response

Error message

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message G0128 - CG/CU &1 may not be assigned to itself ?

  The SAP error message G0128 "CG/CU &1 may not be assigned to itself" typically occurs in the context of configuration (CG) or characteristic (CU) assignments in the SAP system. This error indicates that there is an attempt to assign a configuration or characteristic to itself, which is not allowed.
  Cause:
  
  Self-Assignment: The primary cause of this error is that the configuration or characteristic is being assigned to itself, which creates a circular reference.
  Incorrect Configuration: There may be an error in the way the configuration or characteristics are set up, leading to an invalid assignment.
  Data Entry Error: A user may have mistakenly entered the same configuration or characteristic in the assignment field.
  
  Solution:
  
  Check Assignments: Review the assignments for the configuration or characteristic in question. Ensure that it is not being assigned to itself.
  Correct Configuration: If you find that the configuration or characteristic is incorrectly assigned, modify the assignment to point to a valid configuration or characteristic.
  Validation: After making changes, validate the configuration or characteristic to ensure that all assignments are correct and do not lead to circular references.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on configuring characteristics and configurations to avoid such errors.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like CU01, CU02, or CU03 for creating, changing, or displaying characteristics and configurations.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on configuration management.
  User Authorization: Ensure that you have the necessary authorizations to make changes to configurations and characteristics in the SAP system.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis or functional team for further investigation.