How To Fix KMAT_MIGR066 - A large number of generic articles could not be migrated; see long text

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 066

• Message text: A large number of generic articles could not be migrated; see long text

What causes this issue?

More than 8000 generic articles could not be migrated.

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?

First start the pre-checks.If pre-migration is not yet completed, start
the pre-migration reports and then the report R_MIGOBJCLASSREL_PARA
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_MIGR066 - A large number of generic articles could not be migrated; see long text ?

  The SAP error message KMAT_MIGR066 indicates that during the migration process, a large number of generic articles could not be migrated. This typically occurs in the context of migrating data related to configurable materials (KMAT) in SAP, particularly when transitioning from older versions or systems to newer ones.
  Cause:
  
  Data Volume: The error often arises when there is a significant volume of generic articles that do not meet the criteria for migration. This could be due to inconsistencies or missing data in the source system.
  Configuration Issues: The configuration of the articles may not align with the requirements of the target system, leading to migration failures.
  Missing Dependencies: If the generic articles have dependencies (like characteristics or classes) that are not properly defined or are missing, this can prevent successful migration.
  System Limitations: There may be limitations in the target system regarding the number of articles that can be processed in a single migration run.
  
  Solution:
  
  Review Long Text: The error message suggests checking the long text for more detailed information. This can provide specific insights into which articles failed and why.
  Data Cleanup: Before migration, perform a thorough cleanup of the data in the source system. Ensure that all generic articles have the necessary attributes and dependencies defined.
  Batch Processing: If the volume of articles is too large, consider breaking the migration into smaller batches. This can help manage the load and identify specific issues with smaller sets of data.
  Check Configuration: Ensure that the configuration settings in the target system are correctly set up to accept the generic articles being migrated.
  Consult SAP Notes: Look for relevant SAP Notes that may address this specific error. SAP frequently releases updates and patches that can resolve known issues.
  Testing: Conduct thorough testing in a development or sandbox environment before performing the migration in the production environment. This can help identify potential issues early on.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for migration processes related to configurable materials and generic articles.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  Support: If the issue persists, consider reaching out to SAP Support for assistance, providing them with detailed logs and error messages for further analysis.
  
  By following these steps, you should be able to address the KMAT_MIGR066 error and successfully migrate your generic articles.