How To Fix CNV_NCE_BAS450 - Source number &1 is not a valid value

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_NCE_BAS - Number conversion engine: messages

• Message number: 450

• Message text: Source number &1 is not a valid value

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_NCE_BAS450 - Source number &1 is not a valid value ?

  The SAP error message CNV_NCE_BAS450 with the description "Source number &1 is not a valid value" typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that the source number provided does not match any valid entries in the system.
  Causes:
  
  Invalid Source Number: The source number provided in the migration or conversion process does not exist in the target system or is incorrectly formatted.
  Data Mapping Issues: There may be a mismatch in the data mapping between the source and target systems, leading to invalid references.
  Configuration Errors: The configuration settings for the migration process may not be set up correctly, causing the system to not recognize the source number.
  Missing Data: The required data for the source number may not have been loaded or may be missing from the source system.
  
  Solutions:
  
  Verify Source Number: Check the source number you are using to ensure it is correct and exists in the source system. You can do this by querying the relevant tables or using transaction codes to look up the data.
  Check Data Mapping: Review the data mapping configuration to ensure that the source numbers are correctly mapped to the target system. Make sure that all necessary fields are included and correctly defined.
  Review Migration Settings: Go through the migration settings and configurations to ensure that everything is set up correctly. This includes checking any transformation rules that may affect the source number.
  Data Validation: Perform a validation of the data in the source system to ensure that all required entries are present and correctly formatted.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using to ensure that you are following the correct procedures and guidelines.
  Error Logs: Check the error logs for more detailed information about the error. This can provide insights into what might be causing the issue.
  
  Related Information:
  
  SAP Notes: Look for relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific tool you are using for any known issues or additional troubleshooting steps.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.