How To Fix CNV_NCE_BAS251 - No relevant mapping values found in file &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_NCE_BAS - Number conversion engine: messages

• Message number: 251

• Message text: No relevant mapping values found in file &1

What causes this issue?

You uploaded a file that has either an incorrect format, or that
contains no mapping values for the relevant number range object.

System Response

The uploaded file is not used.

How to fix this error?

Correct the values in the file and upload it again. For more information
about the format of the entries in the file, see SAP Note 1793928.

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_NCE_BAS251 - No relevant mapping values found in file &1 ?

  The SAP error message CNV_NCE_BAS251 indicates that during a data conversion or migration process, the system could not find relevant mapping values in the specified file. This error typically occurs in the context of data migration projects, especially when using SAP's data migration tools or conversion programs.
  Cause:
  
  
  Missing Mapping Values: The file specified in the error message does not contain the necessary mapping values that the system expects. This could be due to:
  
  Incorrect file format or structure.
  Missing data in the file.
  Incorrect configuration of the mapping settings in the migration tool.
  
  
  
  File Path Issues: The file path provided may be incorrect, leading to the system not being able to access the file.
  
  
  Data Inconsistencies: The data in the file may not match the expected format or values that the SAP system is looking for.
  
  
  Configuration Errors: There may be issues with the configuration of the migration project, such as incorrect mapping definitions or settings.
  
  
  Solution:
  
  
  Check the File: 
  
  Verify that the file specified in the error message exists and is accessible.
  Ensure that the file contains the necessary mapping values and is in the correct format.
  
  
  
  Review Mapping Configuration:
  
  Check the mapping configuration in the migration tool to ensure that it is set up correctly.
  Make sure that the mapping definitions correspond to the data in the file.
  
  
  
  Data Validation:
  
  Validate the data in the file to ensure it meets the expected criteria and format.
  Look for any missing or incorrect values that may be causing the issue.
  
  
  
  Log Analysis:
  
  Review the logs generated during the migration process for additional details that may help identify the root cause of the issue.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation related to the specific migration tool or process you are using for any additional troubleshooting steps or requirements.
  
  
  
  Seek Support:
  
  If the issue persists, consider reaching out to SAP support or consulting with a technical expert who specializes in SAP data migration.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  Migration Tools: Familiarize yourself with the specific SAP migration tools being used (e.g., SAP S/4HANA Migration Cockpit, SAP Data Services) and their documentation.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed and resolved.
  
  By following these steps, you should be able to identify and resolve the issue related to the CNV_NCE_BAS251 error message.