How To Fix CNV_CDMC_UCIA021 - & SAP objects referred in custom objects were changed

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_CDMC_UCIA - CDMC Upgrade/Change Impact Analysis

• Message number: 021

• Message text: & SAP objects referred in custom objects were changed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_CDMC_UCIA021 - & SAP objects referred in custom objects were changed ?

  The SAP error message CNV_CDMC_UCIA021 typically relates to issues encountered during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there are changes in the SAP objects referred to in custom objects, which can lead to inconsistencies or failures during the migration process.
  Cause:
  
  
  Changes in Custom Objects: The error suggests that the custom objects (like custom fields, tables, or structures) that are being referenced in the migration process have been altered. This could be due to:
  
  Changes made to the underlying data model.
  Modifications in the custom code or enhancements.
  Updates in the SAP standard objects that affect the custom implementations.
  
  
  
  Incompatibility: The changes in the custom objects may not be compatible with the new data structures or requirements of the target system (e.g., S/4HANA).
  
  
  Data Mapping Issues: If the mapping of data from the source to the target system has not been updated to reflect the changes in the custom objects, it can lead to this error.
  
  
  Solution:
  
  
  Review Custom Objects: Check the custom objects that are being referenced in the migration process. Identify any recent changes made to these objects and assess their impact on the migration.
  
  
  Update Data Mapping: Ensure that the data mapping in the migration cockpit is updated to reflect any changes in the custom objects. This may involve adjusting the mapping rules or modifying the transformation logic.
  
  
  Test Migration: Conduct a test migration to identify any further issues. This will help in validating that the changes made have resolved the error.
  
  
  Consult Documentation: Refer to SAP documentation related to the migration process and the specific error message. This can provide insights into best practices and troubleshooting steps.
  
  
  Engage SAP Support: If the issue persists, consider reaching out to SAP support for assistance. They can provide guidance based on the specific context of your implementation.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that address this specific error message or provide guidance on handling changes in custom objects during migration.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit, which may include troubleshooting tips and best practices for handling custom objects.
  Change Management: Implement a change management process to track changes in custom objects and their impact on migration projects to prevent similar issues in the future.
  
  By following these steps, you should be able to address the CNV_CDMC_UCIA021 error and ensure a smoother migration process.