How To Fix CNV_DMC_WDA126 - '&1' contains empty target values

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_WDA - Messages used in WDA UI

• Message number: 126

• Message text: '&1' contains empty target values

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_WDA126 - '&1' contains empty target values ?

  The SAP error message CNV_DMC_WDA126 indicates that there are empty target values in a data migration process, specifically when using the Data Migration Cockpit (DMC) or related tools. This error typically arises during the data transfer or mapping phase, where the system expects certain fields to have values but finds them empty.
  Cause:
  
  Missing Data: The source data may have missing values for fields that are required in the target system.
  Mapping Issues: There may be a misconfiguration in the mapping between source and target fields, leading to empty values being transferred.
  Data Validation: The data being migrated may not meet the validation rules set in the target system, causing the migration process to reject those records.
  Transformation Logic: If there is any transformation logic applied during the migration, it may not be correctly handling certain fields, resulting in empty target values.
  
  Solution:
  
  Check Source Data: Review the source data for any missing values in the fields that are mapped to the target system. Ensure that all required fields have valid data.
  Review Mapping Configuration: Verify the mapping configuration in the DMC to ensure that all fields are correctly mapped and that there are no discrepancies.
  Data Validation Rules: Check the validation rules in the target system to ensure that the data being migrated complies with these rules. Adjust the source data or mapping as necessary.
  Transformation Logic: If applicable, review any transformation logic to ensure it is correctly processing the data and not resulting in empty values.
  Error Logs: Check the error logs or detailed migration logs for more specific information about which records are causing the issue and why.
  Testing: Perform a test migration with a smaller dataset to identify and resolve issues before executing a full migration.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on data migration issues.
  Documentation: Refer to the official SAP documentation for the Data Migration Cockpit for best practices and troubleshooting tips.
  Community Forums: Engage with SAP community forums or support channels for insights from other users who may have encountered similar issues.
  
  By addressing the root causes and following the suggested solutions, you should be able to resolve the CNV_DMC_WDA126 error and successfully complete your data migration.