How To Fix CNV_10020647 - &1 &2: Proxy &3 in proxy &4 in non-transparent field is undefined

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 647

• Message text: &1 &2: Proxy &3 in proxy &4 in non-transparent field is undefined

What causes this issue?

The non-transparent field contains a proxy &V4& that refers to another
proxy &V3& that is undefined.

How to fix this error?

Define the proxy &V3& and its value using transaction CNV_10020_PROXYF.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10020647 - &1 &2: Proxy &3 in proxy &4 in non-transparent field is undefined ?

  The SAP error message CNV_10020647 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that there is an issue with a proxy field in a non-transparent field, meaning that the system is unable to find a defined value for a specific field in the context of the data being processed.
  Cause:
  
  Undefined Proxy Field: The error suggests that a proxy field (a field that is supposed to map to another field) is not defined or is missing in the data being processed.
  Data Mapping Issues: There may be a problem with the mapping of fields between the source and target systems, especially if the source data does not contain the expected values.
  Configuration Errors: Incorrect configuration in the migration settings or in the data model can lead to this error.
  Data Quality Issues: The source data may have inconsistencies or missing values that prevent successful mapping.
  
  Solution:
  
  Check Data Mapping: Review the mapping configuration to ensure that all required fields are correctly mapped and that the proxy fields are defined.
  Validate Source Data: Ensure that the source data contains all necessary values and that there are no missing or null entries for the fields in question.
  Adjust Migration Settings: If applicable, adjust the settings in the migration tool to handle undefined fields appropriately, such as providing default values or skipping certain records.
  Debugging: Use debugging tools or logs to trace the exact point of failure and identify which specific field is causing the issue.
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration tool you are using for any known issues or additional troubleshooting steps.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific tool you are using for data migration.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered and resolved similar issues.
  
  If the problem persists after following these steps, consider reaching out to SAP support for further assistance, providing them with detailed information about the error and the context in which it occurred.