How To Fix MAT_MESSAGES028 - InclusionExclusionCode '&1' is not supported.

SAP Error Message - Details

• Message type: E = Error

• Message class: MAT_MESSAGES -

• Message number: 028

• Message text: InclusionExclusionCode '&1' is not supported.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MAT_MESSAGES028 - InclusionExclusionCode '&1' is not supported. ?

  The SAP error message MAT_MESSAGES028 with the description "InclusionExclusionCode '&1' is not supported" typically occurs in the context of material master data or when dealing with classification systems in SAP. This error indicates that the inclusion/exclusion code specified in the operation is not recognized or supported by the system.
  Cause:
  
  Invalid Code: The inclusion/exclusion code provided in the transaction or program is not valid or does not exist in the system.
  Configuration Issues: The system may not be properly configured to recognize the specified code, possibly due to missing entries in the relevant customizing tables.
  Data Entry Error: There may be a typographical error in the code entered by the user.
  Version Compatibility: The code may be valid in one version of SAP but not in another, especially if there have been recent upgrades or changes.
  
  Solution:
  
  Check the Code: Verify that the inclusion/exclusion code you are using is correct. Ensure there are no typographical errors.
  Review Configuration: Check the configuration settings in the relevant customizing tables (e.g., T006 for units of measure, T006A for additional units of measure) to ensure that the code is defined and supported.
  Consult Documentation: Refer to SAP documentation or help files to understand the valid codes for your specific version and configuration.
  Use Standard Codes: If you are using a custom code, consider switching to standard codes that are known to be supported by SAP.
  Contact Support: If the issue persists, consider reaching out to your SAP support team or consulting SAP Notes for any known issues related to this error message.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any updates or patches that may address this issue.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01 (Create Material), MM02 (Change Material), and MM03 (Display Material) to see where the error occurs.
  User Roles and Authorizations: Ensure that the user has the necessary authorizations to perform the operation related to the material master data.
  Testing in a Sandbox: If possible, replicate the issue in a sandbox environment to test different codes and configurations without affecting production data.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution.