How To Fix CNV_NCE_BAS114 - 1:1 mapping values for &1 conflicts with an existing number (number &3)

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_NCE_BAS - Number conversion engine: messages

• Message number: 114

• Message text: 1:1 mapping values for &1 conflicts with an existing number (number &3)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_NCE_BAS114 - 1:1 mapping values for &1 conflicts with an existing number (number &3) ?

  The SAP error message CNV_NCE_BAS114 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 a conflict in the mapping of values, specifically that a 1:1 mapping value for a certain field (denoted by &1) is conflicting with an existing number (denoted by &3).
  Cause:
  The error is usually caused by one of the following reasons:
  
  Duplicate Values: The value you are trying to map already exists in the target system, leading to a conflict.
  Incorrect Mapping Configuration: The mapping configuration may not be set up correctly, causing the system to attempt to assign a value that is already in use.
  Data Integrity Issues: There may be issues with the source data that lead to conflicts when trying to map to the target system.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Values: Verify the existing values in the target system for the field indicated by &1. Ensure that the value you are trying to map does not already exist.
  
  
  Adjust Mapping: If the value already exists and is valid, consider adjusting your mapping strategy. You may need to change the mapping for the conflicting value to avoid duplication.
  
  
  Data Cleansing: Review the source data for duplicates or inconsistencies. Cleanse the data to ensure that there are no conflicts before attempting the migration again.
  
  
  Use Different Values: If possible, use different values for the mapping that do not conflict with existing entries in the target system.
  
  
  Consult Documentation: Refer to the SAP documentation or migration guides for specific instructions related to the migration process you are using. There may be additional configuration steps or considerations that need to be addressed.
  
  
  Testing: After making adjustments, perform a test migration with a smaller dataset to ensure that the changes resolve the conflict before proceeding with the full migration.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions for this specific error message.
  Migration Cockpit: Familiarize yourself with the SAP S/4HANA Migration Cockpit and its mapping functionalities, as understanding how it handles data can help prevent such errors.
  Data Mapping Guidelines: Review best practices for data mapping and migration to ensure a smooth transition to the new system.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support or consulting with an SAP expert who can provide more tailored assistance based on your specific scenario.