How To Fix KMAT_MIGR051 - No class type found in customizing that is relevant for variant creation

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 051

• Message text: No class type found in customizing that is relevant for variant creation

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

Create at least one class type that is relevant for variants (field
VARKLART needs to be set) in Customizing for <LS>Cross-Application
Components</> under <LS>Classification System -> Classes -> Maintain
Object Types and Class Types</> and then start the report again.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KMAT_MIGR051 - No class type found in customizing that is relevant for variant creation ?

  The SAP error message KMAT_MIGR051 indicates that there is no class type found in the customizing settings that is relevant for variant creation in the context of configurable materials (KMAT). This error typically arises when you are trying to create or manage configurable materials and the system cannot find the necessary class type that is required for the configuration.
  Cause:
  
  Missing Class Type: The most common cause of this error is that the class type required for the configurable material is not defined in the system.
  Incorrect Customizing Settings: The customizing settings for the class type may not be properly configured or may be missing altogether.
  Transport Issues: If the configuration was transported from another system, there may have been issues during the transport that led to missing settings.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access the class type.
  
  Solution:
  
  
  Check Class Type Configuration:
  
  Go to the transaction code CL02 (Change Class) or CL01 (Create Class) to check if the class type exists.
  Ensure that the class type is defined and is of the correct type (e.g., class type 300 for configurable materials).
  
  
  
  Define Class Type:
  
  If the class type does not exist, you will need to create it. Use transaction CL01 to create a new class type and ensure it is set up correctly for configurable materials.
  
  
  
  Check Customizing Settings:
  
  Navigate to the customizing settings for configurable materials. You can do this via SPRO (SAP Reference IMG) and follow the path: 
  
  Logistics - General ? Master Data ? Material Master ? Configurable Materials ? Define Class Types for Configurable Materials.
  
  
  Ensure that the class type is correctly assigned to the relevant material types.
  
  
  
  Transport Issues:
  
  If the class type was supposed to be transported from another system, check the transport logs for any errors. You may need to re-transport the relevant customizing requests.
  
  
  
  Authorization Check:
  
  Ensure that the user has the necessary authorizations to access and create classes. Check the user roles and authorizations in transaction SU01.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for additional guidance on configuring class types for configurable materials.
  
  
  
  Related Information:
  
  Class Types: In SAP, class types are used to define characteristics and attributes for materials. Class type 300 is specifically used for configurable materials.
  Configurable Materials: These are materials that can be customized based on customer requirements, often used in industries like manufacturing and automotive.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  By following these steps, you should be able to resolve the KMAT_MIGR051 error and successfully create or manage your configurable materials in SAP.