How To Fix CNV_DMC_SIN402 - Customer &1 is confirmed and differs from supplier &2 (see long text)

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_SIN - Messages for s-innovations migration

• Message number: 402

• Message text: Customer &1 is confirmed and differs from supplier &2 (see long text)

What causes this issue?

You want to create a customer for an already existing supplier with the
same number. The mapping of supplier and customer are both confirmed,
but the target values are different.

System Response

The record will be skipped until the mapping is correct.

How to fix this error?

Please check the values from the source file and the confirmed mapping
values.

Procedure for System Administrators

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_DMC_SIN402 - Customer &1 is confirmed and differs from supplier &2 (see long text) ?

  The SAP error message CNV_DMC_SIN402 indicates a discrepancy between customer and supplier data during a data migration or conversion process. This error typically arises in the context of the SAP Data Migration Cockpit or during the use of the SAP S/4HANA Migration Cockpit, particularly when migrating business partner data.
  Cause:
  The error occurs when the system detects that the customer data (identified by &1) is confirmed but does not match the corresponding supplier data (identified by &2). This can happen due to several reasons, including:
  
  Data Inconsistency: The customer and supplier records may have been created or modified independently, leading to inconsistencies in key fields such as names, addresses, or other identifiers.
  Configuration Issues: There may be configuration settings in the system that are not aligned, causing the system to treat the same entity differently in customer and supplier contexts.
  Data Migration Errors: During the data migration process, there may have been errors or omissions that resulted in mismatched records.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  Review the Long Text: Check the long text of the error message for specific details about the discrepancy. This can provide insights into which fields are causing the mismatch.
  Data Comparison: Compare the customer and supplier records in the system. Look for differences in key fields such as:
  
  Name
  Address
  Contact information
  Tax numbers
  
  
  Correct Inconsistencies: Update the records to ensure that the customer and supplier data match. This may involve:
  
  Modifying the customer record to align with the supplier record.
  Updating the supplier record to match the customer record.
  
  
  Re-run the Migration: After making the necessary corrections, re-run the migration process to see if the error persists.
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration process you are using for additional guidance.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Data Migration Cockpit: Familiarize yourself with the SAP Data Migration Cockpit and its functionalities, as it may provide tools for data validation and correction.
  Business Partner Configuration: Ensure that the business partner configuration in your SAP system is set up correctly, as this can impact how customers and suppliers are treated.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance.