How To Fix CNV_NCE_BAS167 - Number &1: target number is already used in the other 1:1 mapping

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_NCE_BAS - Number conversion engine: messages

• Message number: 167

• Message text: Number &1: target number is already used in the other 1:1 mapping

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_NCE_BAS167 - Number &1: target number is already used in the other 1:1 mapping ?

  The SAP error message CNV_NCE_BAS167 indicates that there is a conflict in the mapping of target numbers during a data conversion or migration process. Specifically, it means that the target number you are trying to use is already assigned to another source number in a 1:1 mapping scenario. This typically occurs in the context of data migration projects, especially when using SAP's data migration tools.
  Cause:
  
  Duplicate Target Numbers: The target number you are trying to assign has already been used for another source number in the mapping table.
  Incorrect Mapping Configuration: There may be an error in the mapping configuration where multiple source numbers are trying to map to the same target number.
  Data Integrity Issues: The source data may have duplicates or inconsistencies that lead to conflicts during the mapping process.
  
  Solution:
  
  Check Mapping Table: Review the mapping table to identify where the target number is already being used. You can do this by searching for the target number in the mapping configuration.
  Adjust Mapping: If you find that the target number is indeed being used, you will need to either:
  
  Change the source number that is trying to map to this target number.
  Assign a different target number to the source number that is causing the conflict.
  
  
  Data Cleansing: Ensure that the source data is clean and does not contain duplicates that could lead to mapping conflicts.
  Consult Documentation: Refer to SAP documentation or guides related to the specific data migration tool you are using for additional insights and best practices.
  Testing: After making changes, perform a test run of the mapping to ensure that the error does not occur again.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Data Migration Tools: Familiarize yourself with the specific data migration tools you are using (e.g., SAP S/4HANA Migration Cockpit, SAP Data Services) as they may have specific guidelines for handling mapping issues.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to resolve the CNV_NCE_BAS167 error and successfully complete your data mapping process.