How To Fix CNV_10020731 - &1 &2: In the passed parameter, proxy &4 refers to undefined proxy &3

CNV_10020731 - Overview

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 731

• Message text: &1 &2: In the passed parameter, proxy &4 refers to undefined proxy &3

What causes this issue?

The passed parameter of the interface 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_10020731 - Details

• The SAP error message CNV_10020731 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there is a reference to a proxy that has not been defined or is not available in the context of the operation being performed.
  
  Cause:
  The error message can arise due to several reasons:
  
  Undefined Proxy: The proxy referred to in the error message (&3) has not been defined in the system or is not available in the current context.
  
  Configuration Issues: There may be issues with the configuration of the migration or conversion project, leading to missing or incorrect mappings.
  Data Model Changes: If there have been changes in the data model or structure, the proxies may not align with the current definitions.
  Transport Issues: If the proxies were supposed to be transported from another system and the transport did not include them, this could lead to