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

CNV_10100258 - Overview

• 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

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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CNV_10100258 - Details

• 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