How To Fix KU378 - Characteristic structure already generated

SAP Error Message - Details

• Message type: E = Error

• Message class: KU - Costing: Rollup

• Message number: 378

• Message text: Characteristic structure already generated

What causes this issue?

It is not necessary to generate the characteristics for the product
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Error message extract from SAP system. Copyright SAP SE.

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• What is the cause and solution for SAP error message KU378 - Characteristic structure already generated ?

  The SAP error message KU378, which states "Characteristic structure already generated," typically occurs in the context of SAP's variant configuration (VC) when you attempt to generate a characteristic structure for a configurable material that has already been generated. This can happen during the configuration of materials where characteristics and their values are defined.
  Cause:
  The error is triggered when:
  
  You try to generate a characteristic structure for a material that already has a characteristic structure generated.
  There may be an attempt to regenerate the structure without first deleting or modifying the existing one.
  The system may be in a state where it does not allow changes to the characteristic structure due to certain settings or locks.
  
  Solution:
  To resolve the KU378 error, you can follow these steps:
  
  
  Check Existing Characteristic Structure:
  
  Go to the transaction code CU50 (or CU51 for display) to check if a characteristic structure already exists for the material in question.
  If it exists, you may need to modify or delete it before attempting to generate a new one.
  
  
  
  Delete Existing Structure:
  
  If you determine that the existing characteristic structure is no longer needed, you can delete it using the transaction code CU51 (Display) and then navigate to the delete option.
  Ensure that you have the necessary authorizations to perform this action.
  
  
  
  Regenerate Characteristic Structure:
  
  After deleting the existing structure, you can attempt to regenerate the characteristic structure using transaction CU01 or CU02 (for creating or changing characteristic structures).
  
  
  
  Check for Locks:
  
  Ensure that there are no locks on the material or characteristic structure that might prevent changes. You can check for locks using transaction SM12.
  
  
  
  Review Configuration Settings:
  
  Review the configuration settings and ensure that the material is set up correctly for variant configuration.
  
  
  
  Consult Documentation:
  
  If the issue persists, consult SAP documentation or support for further troubleshooting steps specific to your version and configuration of SAP.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  CU50: Create/Change Characteristic Structure
  CU51: Display Characteristic Structure
  CU01: Generate Characteristic Structure
  CU02: Change Characteristic Structure
  SM12: Display and manage locks
  
  
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  
  
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  
  By following these steps, you should be able to resolve the KU378 error and successfully manage your characteristic structures in SAP.