How To Fix CNV_DMC_SIN357 - Supplier &1 is not a confirmed value in mapping (see long text)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 357

• Message text: Supplier &1 is not a confirmed value in mapping (see long text)

What causes this issue?

You want to enhance an already existing supplier &V1& with new org
levels. But the mapping of supplier is not confirmed.

System Response

The record will be skipped until the mapping is confirmed.

How to fix this error?

Please confirm the mapping of supplier in step Convert Values with the
already existing number of the supplier.

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_SIN357 - Supplier &1 is not a confirmed value in mapping (see long text) ?

  The SAP error message CNV_DMC_SIN357 indicates that a supplier (or vendor) specified in a mapping process is not recognized as a confirmed or valid value in the system. This typically occurs during data migration or conversion processes, particularly when using the SAP Data Migration Cockpit or similar tools.
  Cause:
  
  Invalid Supplier ID: The supplier ID provided in the mapping does not exist in the target system or is not correctly defined.
  Mapping Issues: There may be a problem with the mapping configuration, where the supplier ID is not correctly linked to the corresponding value in the target system.
  Data Inconsistencies: The source data may contain inconsistencies or errors, such as typos or incorrect formatting.
  Missing Data: The supplier data may not have been migrated or loaded into the system prior to the mapping process.
  
  Solution:
  
  Verify Supplier ID: Check the supplier ID in the source data and ensure it matches an existing supplier in the target system. You can do this by querying the vendor master data in the target SAP system.
  Update Mapping Configuration: If the supplier ID is correct, ensure that the mapping configuration is set up properly. You may need to adjust the mapping rules to include the supplier.
  Data Cleansing: Review the source data for any inconsistencies or errors. Cleanse the data to ensure that all supplier IDs are valid and correctly formatted.
  Load Missing Data: If the supplier data is missing in the target system, ensure that it is loaded before running the mapping process again.
  Consult Long Text: The error message suggests checking the long text for more details. This may provide additional context or specific instructions related to the error.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to check the vendor master data.
  SAP Notes: Look for relevant SAP Notes or documentation that may address this specific error or provide additional troubleshooting steps.
  Data Migration Tools: Familiarize yourself with the SAP Data Migration Cockpit or other tools being used for the migration process, as they may have specific requirements or configurations for supplier data.
  
  If the issue persists after following these steps, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.