How To Fix MDC_MAT_MODEL006 - Characteristic Value not unique for material &1

SAP Error Message - Details

• Message type: E = Error

• Message class: MDC_MAT_MODEL -

• Message number: 006

• Message text: Characteristic Value not unique for material &1

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MDC_MAT_MODEL006 - Characteristic Value not unique for material &1 ?

  The SAP error message MDC_MAT_MODEL006, which states "Characteristic Value not unique for material &1," typically occurs in the context of Material Master data management, particularly when dealing with classification and characteristics in SAP's Material Management (MM) module or the SAP Advanced Planning and Optimization (APO) module.
  Cause:
  This error indicates that there is a conflict with the characteristic values assigned to a material. Specifically, it means that the characteristic value you are trying to assign to the material is not unique. This can happen for several reasons:
  
  Duplicate Characteristic Values: The characteristic value you are trying to assign already exists for another material or is being used in a way that violates the uniqueness requirement.
  Incorrect Configuration: The configuration of the characteristics in the classification system may not be set up correctly, leading to conflicts.
  Data Entry Errors: There may be typos or incorrect entries in the characteristic values that lead to duplicates.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Characteristic Values:
  
  Go to the classification view of the material in question and check the existing characteristic values. Ensure that the value you are trying to assign is not already in use by another material.
  
  
  
  Review Characteristic Configuration:
  
  Check the configuration of the characteristics in the classification system. Ensure that the settings allow for the intended use of the characteristic values and that they are defined correctly.
  
  
  
  Modify or Remove Duplicates:
  
  If you find that the characteristic value is indeed duplicated, you may need to modify or remove the conflicting entries. This may involve changing the characteristic value for one of the materials or reclassifying the materials.
  
  
  
  Use Unique Values:
  
  Ensure that the characteristic values you are trying to assign are unique and do not conflict with existing values in the system.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or consult with your SAP support team for specific guidelines related to your version of SAP and the configuration of your material master data.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like MM02 (Change Material), CL02 (Change Class), or CL01 (Create Class) to manage material and classification data.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to this error message.
  User Roles and Authorizations: Ensure that you have the necessary authorizations to make changes to material master data and classifications.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it. If the issue persists, consider reaching out to your SAP support team for further assistance.