How To Fix KMAT_MIGR056 - Gen. art. &1 not yet pre-migrated (class type &2); client &3

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 056

• Message text: Gen. art. &1 not yet pre-migrated (class type &2); client &3

What causes this issue?

An entry for the generic article and the variant creating configuration
class does not exist.

System Response

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

How to fix this error?

Please run the pre-migration report R_PREMIG_VAR2CONFCLASS for this
generic article first and then start this 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_MIGR056 - Gen. art. &1 not yet pre-migrated (class type &2); client &3 ?

  The SAP error message KMAT_MIGR056 indicates that a generic article (KMAT) has not yet been pre-migrated for a specific class type in the specified client. This error typically arises during the migration process of configurable materials (KMAT) in SAP, particularly when transitioning from older versions or systems to newer ones.
  Cause:
  
  Pre-Migration Not Completed: The error suggests that the generic article (KMAT) has not been pre-migrated, which is a necessary step before performing certain operations or migrations.
  Incorrect Configuration: The class type specified may not be correctly configured or may not exist in the system.
  Client-Specific Issues: The issue may be specific to the client you are working in, meaning that the necessary data or configurations have not been set up for that client.
  
  Solution:
  
  Pre-Migrate the Generic Article: Ensure that the generic article (KMAT) is pre-migrated. This can typically be done using transaction codes or migration tools provided by SAP. Check the migration documentation for the specific steps required.
  Check Class Type Configuration: Verify that the class type specified in the error message is correctly configured in the system. You can do this by checking the configuration settings in the SAP system.
  Client-Specific Data: Make sure that all necessary data for the client is available and correctly set up. This may involve checking the client settings and ensuring that the migration process has been executed for that client.
  Consult SAP Notes: Look for any relevant SAP Notes that may address this specific error. SAP frequently releases notes that provide solutions or workarounds for known issues.
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes related to material management and migration, such as MM01, MM02, or specific migration tools.
  Migration Tools: SAP provides various tools for data migration, including the SAP S/4HANA Migration Cockpit, which may have specific steps for handling KMAT articles.
  Documentation: Review the official SAP documentation for migration processes, especially if you are migrating from an older version of SAP to S/4HANA or another version.
  
  By following these steps, you should be able to resolve the KMAT_MIGR056 error and successfully pre-migrate the generic article in your SAP system.