How To Fix CNV_10100258 - Start of duplicate record check for new set names

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10100 - Messages from package 10100

• Message number: 258

• Message text: Start of duplicate record check for new set names

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10100258 - Start of duplicate record check for new set names ?

  The SAP error message CNV_10100258 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there is an attempt to create or process a new set of names (or records) that already exist in the system, leading to a conflict due to duplicate entries.
  Cause:
  The primary cause of this error is the presence of duplicate records in the dataset being processed. This can happen due to:
  
  Data extraction issues where the same records are pulled multiple times.
  Incorrect data preparation or transformation steps that do not adequately handle duplicates.
  Existing records in the target system that conflict with the new records being imported.
  
  Solution:
  To resolve the CNV_10100258 error, you can follow these steps:
  
  
  Identify Duplicates:
  
  Review the dataset you are trying to import. Use tools like Excel or SQL queries to identify any duplicate records based on the key fields that are supposed to be unique.
  
  
  
  Clean the Data:
  
  Remove or consolidate duplicate records in your source data. Ensure that each record is unique before attempting the import again.
  
  
  
  Check Existing Records:
  
  Verify if the records you are trying to import already exist in the target SAP system. If they do, you may need to decide whether to update these records or skip them.
  
  
  
  Adjust Migration Settings:
  
  If applicable, adjust the settings in the migration tool to handle duplicates according to your business logic (e.g., skip duplicates, update existing records, etc.).
  
  
  
  Test the Migration:
  
  After cleaning the data and adjusting settings, perform a test migration with a smaller dataset to ensure that the error does not occur again.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation or notes related to the specific migration tool you are using for any additional guidance or best practices.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might provide additional insights or patches related to this error.
  Migration Cockpit: Familiarize yourself with the SAP S/4HANA Migration Cockpit and its functionalities, as it may have specific features for handling duplicates.
  Data Quality Tools: Consider using data quality tools or services to help cleanse and prepare your data before migration.
  
  By following these steps, you should be able to resolve the CNV_10100258 error and successfully complete your data migration process.