How To Fix KMAT_MIGR021 - Class type &1 is not a variant class type

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 021

• Message text: Class type &1 is not a variant class type

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message KMAT_MIGR021 - Class type &1 is not a variant class type ?

  The SAP error message KMAT_MIGR021 indicates that there is an issue related to class types in the context of configurable materials (KMAT). Specifically, the error message states that the class type you are trying to work with is not a variant class type. This typically occurs during the migration or configuration of variant configuration settings in SAP.
  
  Cause:
  
  Incorrect Class Type: The class type specified in the error message is not a variant class type. In SAP, variant class types are typically defined for configurable materials, and they must be set up correctly to allow for the configuration of products.
  
  Configuration Issues: There may be issues with the configuration of the class or the material that is being referenced. This could include missing or incorrect settings in the class type definition.
  Data Migration Issues: If you are migrating data from one system to another, the class type may not have been correctly defined or