How To Fix CNV_20900021 - Merge to vendor number &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20900 - Message class for package CNV_20900

• Message number: 021

• Message text: Merge to vendor number &2

What causes this issue?

It was found that you are going to merge &V1& (and possibly other
vendor records as well) into existing vendor &V2&.
This amounts to the following merge scenario:
&V1& -> &V2&
.... -> &V2&
&V2& -> &V2&

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20900021 - Merge to vendor number &2 ?

  The SAP error message CNV_20900021, which states "Merge to vendor number &2," typically occurs during data migration or data conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there is an issue with vendor data, specifically that there are multiple vendor records that need to be merged into a single vendor number.
  Cause:
  
  Duplicate Vendor Records: The error usually arises when there are duplicate vendor records in the source data that need to be consolidated into a single vendor number.
  Data Inconsistencies: There may be inconsistencies in the vendor data, such as different addresses, payment terms, or other attributes that prevent the system from merging the records automatically.
  Configuration Issues: Incorrect configuration settings in the migration tool or the system can also lead to this error.
  
  Solution:
  
  Identify Duplicate Vendors: Review the vendor data to identify the duplicate records that are causing the issue. You can use transaction codes like MK03 (Display Vendor) or MKVZ (Vendor List) to check the vendor details.
  Consolidate Vendor Data: Decide which vendor record will be the primary one and consolidate the relevant data from the duplicate records into this primary record. Ensure that all necessary information is captured.
  Use the Correct Vendor Number: When prompted by the error message, ensure that you are merging the records into the correct vendor number (the one you have chosen as the primary).
  Adjust Migration Settings: If applicable, check the settings in the migration tool to ensure that it is configured correctly to handle vendor merges.
  Test the Migration: After making the necessary adjustments, run a test migration to ensure that the error does not occur again.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or fixes related to this error. You can search the SAP Support Portal for notes related to CNV_20900021.
  Documentation: Review the documentation for the migration tool you are using, as it may provide specific instructions on handling vendor merges.
  Community Forums: Consider visiting SAP Community forums or other user groups where similar issues may have been discussed, and solutions shared.
  
  If the problem persists after following these steps, it may be beneficial to consult with an SAP expert or your organization's SAP support team for further assistance.