How To Fix CNV_IUUC_REPLICATION126 - Migration object exists

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_IUUC_REPLICATION - IUUC replication messages (HANA)

• Message number: 126

• Message text: Migration object exists

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_IUUC_REPLICATION126 - Migration object exists ?

  The SAP error message CNV_IUUC_REPLICATION126 typically indicates that there is a conflict due to the existence of a migration object in the system. This error is often encountered during data migration processes, particularly when using the SAP Landscape Transformation (SLT) replication or SAP S/4HANA migration tools.
  Cause:
  The error occurs when:
  
  A migration object that you are trying to create or modify already exists in the system.
  There may be an inconsistency in the migration setup or configuration.
  The migration object might have been created in a previous migration attempt and not properly cleaned up.
  
  Solution:
  To resolve the CNV_IUUC_REPLICATION126 error, you can follow these steps:
  
  
  Check Existing Migration Objects:
  
  Use transaction code SLT or SE11 to check if the migration object already exists in the system.
  Look for any existing entries that might conflict with the new migration object you are trying to create.
  
  
  
  Delete or Modify Existing Objects:
  
  If you find that the migration object exists and is no longer needed, you can delete it.
  If the object is still required, consider modifying it instead of creating a new one.
  
  
  
  Review Migration Configuration:
  
  Ensure that your migration configuration is correct and that there are no inconsistencies.
  Check the settings in the SLT configuration or the relevant migration tools you are using.
  
  
  
  Check for Active Replication:
  
  If the migration object is currently being used for replication, you may need to stop the replication process before making changes.
  
  
  
  Consult SAP Notes:
  
  Look for relevant SAP Notes that might address this specific error. SAP frequently updates its knowledge base with solutions for common issues.
  
  
  
  System Logs:
  
  Review system logs for additional details that might provide more context about the error.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above steps, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SLT, SE11, and SE37 for managing data migration and replication.
  Documentation: Review SAP documentation related to data migration and SLT for best practices and troubleshooting tips.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.