How To Fix CNV40107003 - Duplicate entries: Old value : &1, New value: &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV40107 - Package 40107 - Logical System

• Message number: 003

• Message text: Duplicate entries: Old value : &1, New value: &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV40107003 - Duplicate entries: Old value : &1, New value: &2 ?

  The SAP error message CNV40107003 indicates that there are duplicate entries in a data migration or conversion process. This error typically arises during data migration activities, especially when using SAP's Data Migration tools or during the execution of a conversion program. The message specifies that there is a conflict between an old value and a new value, which cannot coexist in the target system.
  Cause:
  The error occurs due to the following reasons:
  
  Duplicate Data: The old value already exists in the target system, and the new value being migrated or converted is identical to it.
  Data Integrity Rules: The target system has constraints or rules that prevent duplicate entries in certain fields or tables.
  Incorrect Mapping: There may be an issue with the mapping of fields during the migration process, leading to attempts to insert duplicate values.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Identify Duplicates:
  
  Review the data being migrated to identify the old and new values causing the conflict.
  Use SQL queries or data analysis tools to find duplicates in the source data.
  
  
  
  Data Cleansing:
  
  Cleanse the data before migration to ensure that there are no duplicates.
  Remove or consolidate duplicate entries in the source data.
  
  
  
  Adjust Mapping:
  
  Check the mapping configuration in the migration tool to ensure that it is set up correctly.
  Ensure that the fields being mapped do not lead to duplicate entries in the target system.
  
  
  
  Modify Target Data:
  
  If appropriate, modify the existing data in the target system to accommodate the new values, ensuring that data integrity is maintained.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific migration tool you are using for additional guidance on handling duplicates.
  
  
  
  Testing:
  
  After making the necessary adjustments, perform a test migration to ensure that the error does not occur again.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions for this specific error.
  Data Migration Tools: Familiarize yourself with the specific data migration tools being used (e.g., SAP S/4HANA Migration Cockpit, LSMW, etc.) and their handling of duplicate entries.
  Data Governance: Implement data governance practices to maintain data quality and prevent duplicates in the future.
  
  By following these steps, you should be able to resolve the CNV40107003 error and successfully complete your data migration or conversion process.