How To Fix KMAT_MIGR123 - &1 variants have more than 1 instance in configuration (IBase).

SAP Error Message - Details

• Message type: E = Error

• Message class: KMAT_MIGR - Message Class for Migration of Variants to IBase

• Message number: 123

• Message text: &1 variants have more than 1 instance in configuration (IBase).

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message KMAT_MIGR123 - &1 variants have more than 1 instance in configuration (IBase). ?

  The SAP error message KMAT_MIGR123 indicates that there are multiple instances of a variant in the configuration of a configurable material (KMAT) in the Installed Base (IBase). This typically occurs during the migration or configuration of configurable materials where the system expects a unique instance for each variant but finds duplicates.
  Cause:
  
  Duplicate Variants: The error is primarily caused by having multiple instances of the same variant in the configuration. This can happen if the configuration data was not cleaned up properly before migration or if there are inconsistencies in the data.
  Incorrect Configuration: The configuration of the material might have been set up incorrectly, leading to multiple entries for the same variant.
  Data Migration Issues: If data was migrated from another system or from legacy data, it may have resulted in duplicate entries.
  
  Solution:
  
  Identify Duplicates: Use transaction codes like CS03 (Display Material BOM) or CU50 (Configuration Profile) to check the configuration of the material and identify where the duplicates are occurring.
  Clean Up Data: Remove or consolidate the duplicate entries. This may involve:
  
  Deleting unnecessary duplicates.
  Merging configurations if applicable.
  
  
  Check Configuration Profiles: Ensure that the configuration profiles are set up correctly and that they do not allow for multiple instances of the same variant.
  Reconfigure the Material: If necessary, reconfigure the material to ensure that each variant is unique and correctly represented in the system.
  Consult Documentation: Review SAP documentation or notes related to KMAT and IBase configurations for any specific guidelines or best practices.
  Testing: After making changes, test the configuration to ensure that the error no longer occurs and that the material behaves as expected.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance on handling KMAT configurations.
  Transaction Codes: Familiarize yourself with transaction codes related to configurable materials, such as CU01 (Create Configuration Profile), CU02 (Change Configuration Profile), and CU03 (Display Configuration Profile).
  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 KMAT_MIGR123 error and ensure that your configurable materials are set up correctly in the system.