How To Fix CNV_NCE_BAS076 - &1 Range &2 &3: mapping values result in duplicate numbers

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_NCE_BAS - Number conversion engine: messages

• Message number: 076

• Message text: &1 Range &2 &3: mapping values result in duplicate numbers

What causes this issue?

The program has determined that given mappings produce duplicate numbers
in corresponding interval.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Check intervals that are mapped to the corresponding one, pay attention
to their number levels. Correct offsets or patterns to eliminate
existing conflicts.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_NCE_BAS076 - &1 Range &2 &3: mapping values result in duplicate numbers ?

  The SAP error message CNV_NCE_BAS076 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 are duplicate mapping values in the specified range, which can lead to conflicts during the data transfer.
  Cause:
  The error arises when the mapping values defined for a certain range are not unique. This can happen due to:
  
  Duplicate Entries: The mapping table or configuration may contain duplicate entries for the same key or identifier.
  Incorrect Mapping Logic: The logic used to map source values to target values may not be correctly defined, leading to multiple source values mapping to the same target value.
  Data Quality Issues: The source data may have inconsistencies or duplicates that were not addressed prior to the migration.
  
  Solution:
  To resolve the CNV_NCE_BAS076 error, you can follow these steps:
  
  
  Review Mapping Configuration:
  
  Check the mapping configuration for the specific range mentioned in the error message. Ensure that all mapping values are unique and correctly defined.
  
  
  
  Identify Duplicates:
  
  Analyze the source data and the mapping table to identify any duplicate entries. You can use SQL queries or data analysis tools to find duplicates.
  
  
  
  Adjust Mapping Logic:
  
  If the mapping logic is incorrect, revise it to ensure that each source value maps to a unique target value. This may involve modifying the mapping rules or adding additional conditions.
  
  
  
  Clean Source Data:
  
  If the source data contains duplicates, clean the data before migration. This may involve deduplication processes or data cleansing activities.
  
  
  
  Test the Changes:
  
  After making the necessary adjustments, re-run the migration process to check if the error persists.
  
  
  
  Consult Documentation:
  
  Refer to 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 may provide additional insights or fixes related to this error.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific tool you are using for data migration.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the root cause of the CNV_NCE_BAS076 error and implement a solution to resolve it.