How To Fix CNV_20900141 - Old vendor number cannot be initial(mapping) : &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20900 - Message class for package CNV_20900

• Message number: 141

• Message text: Old vendor number cannot be initial(mapping) : &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20900141 - Old vendor number cannot be initial(mapping) : &1 ?

  The SAP error message CNV_20900141 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 an issue with the vendor number mapping during the conversion process. Specifically, it suggests that the old vendor number cannot be initialized or mapped correctly.
  Cause:
  
  Missing Mapping: The old vendor number that you are trying to map does not exist in the mapping table or is not properly defined.
  Incorrect Data Format: The format of the old vendor number may not match the expected format in the target system.
  Data Integrity Issues: There may be inconsistencies or errors in the source data that prevent proper mapping.
  Configuration Issues: The mapping configuration in the migration tool may not be set up correctly.
  
  Solution:
  
  Check Mapping Table: Ensure that the old vendor numbers are correctly defined in the mapping table. You may need to manually add or correct entries in the mapping table.
  Validate Data: Review the source data for any inconsistencies or errors. Ensure that all vendor numbers are valid and conform to the expected format.
  Review Migration Configuration: Check the configuration settings in the migration tool to ensure that they are set up correctly for the mapping process.
  Use Transaction Codes: If applicable, use transaction codes like OBD1 or OBD2 to check vendor master data and ensure that the old vendor numbers are correctly set up.
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration process you are using for any additional troubleshooting steps or requirements.
  Contact SAP Support: If the issue persists, consider reaching out to SAP support for assistance, providing them with detailed information about the error and the context in which it occurred.
  
  Related Information:
  
  Migration Cockpit: Familiarize yourself with the SAP S/4HANA Migration Cockpit and its functionalities, as it is often used for data migration tasks.
  SAP Notes: Search for relevant SAP Notes that may address this specific error or provide additional guidance on vendor number mapping issues.
  Data Migration Best Practices: Review best practices for data migration in SAP to ensure a smooth transition and minimize errors.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.