How To Fix CNV_10020281 - Elementary relationship &1: Spec. form &2 has wrong interface

CNV_10020281 - Overview

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 281

• Message text: Elementary relationship &1: Spec. form &2 has wrong interface

What causes this issue?

Specific routine &V2& has been stored for single determination for
elementary relationship &V1&. However the interface is not defined
correctly.

How to fix this error?

Correct the interface definition of routine &V2&. <ZH>Note that it must
be EXACTLY the same as for sample routine &V3&</>, because internally
the call is explicitly included in the coding.
<ZH>Note:</> The program for checking the interface definition compares
the definition for routine &V2& with the one for sample routine &V3&.
This is also why the interface parameters have to have exactly the same
names. Even the formatting must be identical.
The best solution is to copy sample routine &V3& to the routine you want
to use.

Error message extract from SAP system. Copyright SAP SE.

CNV_10020281 - Details

• The SAP error message CNV_10020281 typically relates to issues encountered during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This specific error indicates that there is a problem with the interface of a specified form in the context of an elementary relationship.
  
  Cause:
  The error can arise due to several reasons, including:
  
  Incorrect Configuration: The specified form (e.g., a data structure or mapping) may not be correctly configured or may not match the expected interface for the elementary relationship.
  Data Model Changes: If there have been changes in the data model or the underlying structures in the source or target systems, it can lead to mismatches.
  Version Mismatch: The version of the migration tool or the data model being used may not be compatible with the current system version.
  Missing or Incorrect Mapping: The mapping between source and target fields may be incomplete or incorrect.
  
  
  Solution:
  To resolve this error,