How To Fix CNV_20900078 - The scenario is 1:N split of vendor numbers

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20900 - Message class for package CNV_20900

• Message number: 078

• Message text: The scenario is 1:N split of vendor numbers

What causes this issue?

It was found that a vendor has been entered more than once as an "old"
value in your mapping. This is a split scenario.

System Response

The current package does not support vendor record split.

How to fix this error?

Remove the split scenario, that is, make sure that no vendor record is
included more than once an old value in your mapping.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20900078 - The scenario is 1:N split of vendor numbers ?

  The SAP error message CNV_20900078 typically occurs during the data migration process, particularly when dealing with the conversion of vendor numbers in a 1:N split scenario. This error indicates that there is an issue with the mapping or transformation of vendor numbers, where one vendor number is being split into multiple new vendor numbers.
  Cause:
  
  Data Mapping Issues: The mapping of the old vendor number to the new vendor numbers may not be correctly defined or may have inconsistencies.
  Duplicate Vendor Numbers: There may be attempts to create duplicate vendor numbers in the target system, which is not allowed.
  Missing Data: Required data for the new vendor numbers may be missing or incorrectly formatted.
  Configuration Errors: The configuration settings for the data migration tool may not be set up correctly for handling 1:N splits.
  
  Solution:
  
  Review Mapping Configuration: Check the mapping configuration for the vendor numbers to ensure that it correctly defines how the old vendor number splits into multiple new vendor numbers.
  Check for Duplicates: Ensure that the new vendor numbers being created do not already exist in the target system. If they do, you may need to adjust the mapping or handle duplicates appropriately.
  Validate Data: Ensure that all required fields for the new vendor numbers are populated and correctly formatted. This includes checking for any mandatory fields that may be missing.
  Adjust Migration Settings: If using a migration tool (like SAP S/4HANA Migration Cockpit), review the settings and parameters to ensure they are configured to handle 1:N splits correctly.
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration scenario you are working on for any additional guidance or known issues.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Migration Tools: Familiarize yourself with the specific migration tools being used (e.g., SAP S/4HANA Migration Cockpit, LSMW) and their capabilities regarding vendor number conversions.
  Testing: Conduct thorough testing in a development or sandbox environment before executing the migration in production to identify and resolve any issues beforehand.
  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 occurs.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to successfully complete the vendor number migration.