How To Fix CNV_10020646 - &1 &2: Proxy &3 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: 646

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

What causes this issue?

The non-transparent field contains a 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_10020646 - &1 &2: Proxy &3 in non-transparent field is undefined ?

  The SAP error message CNV_10020646 typically occurs during data migration or conversion processes, particularly when using the SAP Landscape Transformation (SLT) or SAP Data Services. This error indicates that a proxy field in a non-transparent table is undefined, which means that the system is trying to access a field that does not exist or is not properly defined in the context of the operation being performed.
  Cause:
  
  Non-Transparent Fields: The error suggests that the system is trying to access a field in a non-transparent table (a table that does not have a direct representation in the database) that is not defined or is incorrectly mapped.
  Data Mapping Issues: There may be issues with the data mapping configuration, where the source and target fields are not aligned correctly.
  Missing Configuration: The proxy or mapping configuration may be incomplete or missing, leading to the inability to resolve the field reference.
  Data Model Changes: Changes in the data model or structure of the source or target systems may lead to discrepancies in field definitions.
  
  Solution:
  
  Check Field Definitions: Verify that the field in question is defined correctly in the target system. Ensure that the field exists and is accessible.
  Review Mapping Configuration: Go through the data mapping configuration to ensure that all fields are correctly mapped from the source to the target. Make sure that the proxy field is defined and correctly referenced.
  Update Data Model: If there have been changes to the data model, update the relevant configurations to reflect these changes.
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration or conversion process you are using. There may be specific guidelines or updates that address this error.
  Debugging: If you have access to debugging tools, you can trace the execution to identify where the error is occurring and gather more context about the undefined proxy field.
  Contact SAP Support: If the issue persists and you cannot resolve it, consider reaching out to SAP support for assistance. Provide them with the error message details and any relevant context.
  
  Related Information:
  
  SAP Notes: Check for any SAP Notes related to the error message CNV_10020646. SAP frequently releases notes that provide solutions or workarounds for known issues.
  Migration Tools: Familiarize yourself with the tools you are using for data migration (e.g., SAP Data Services, SLT) and their specific requirements for field definitions and mappings.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed. Other users may have encountered the same error and can provide insights or solutions.
  
  By following these steps, you should be able to diagnose and resolve the error related to the undefined proxy field in your SAP environment.