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

CNV_10020647 - Overview

• 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.

CNV_10020647 - Details

• 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