How To Fix CNV_PE792 - Only fields of the data model root table are allowed

CNV_PE792 - Overview

• Message type: E = Error

• Message class: CNV_PE - General messages for posting engine

• Message number: 792

• Message text: Only fields of the data model root table are allowed

What causes this issue?

You are configuring a transformation for a transfer method parameter
&V1& which is a standalone field. The only allowed data model parameters
are fields of the root table.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

CNV_PE792 - Details

• The SAP error message CNV_PE792: Only fields of the data model root table are allowed typically occurs during data migration or transformation processes, particularly when using SAP's data migration tools like the SAP S/4HANA Migration Cockpit or other data conversion tools. This error indicates that there is an attempt to access or manipulate fields that are not part of the root table of the data model being processed.
  
  Cause:
  
  Incorrect Field Mapping: The error often arises when fields from child tables or non-root tables are included in the data model or mapping configuration. The migration tool expects only fields from the root table to be processed.
  Data Model Configuration: The data model may not be correctly defined, leading to the inclusion of non-root fields in the migration process.
  Incompatible Data Structure: The structure of the source data may not align with the expected structure of the target data model, causing the tool to reference