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

SAP Error Message - Details

• 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10020281 - Elementary relationship &1: Spec. form &2 has wrong interface ?

  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, you can take the following steps:
  
  Check Configuration: Review the configuration of the specified form and ensure that it adheres to the expected interface. Verify that all required fields are correctly defined.
  Validate Data Model: Ensure that the data model in both the source and target systems is aligned. If there have been changes, update the migration settings accordingly.
  Review Migration Settings: Check the migration settings in the SAP S/4HANA Migration Cockpit or the relevant tool you are using. Ensure that the mappings and transformations are correctly defined.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using. There may be notes or guidelines regarding the configuration of elementary relationships.
  Check for Updates: Ensure that you are using the latest version of the migration tool and that all relevant patches have been applied.
  Test with Sample Data: If possible, test the migration with a smaller set of sample data to isolate the issue and verify that the configuration works as expected.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to the specific error message or the migration tool you are using. SAP frequently updates its knowledge base with solutions to common issues.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues. You can find discussions, solutions, and best practices.
  Documentation: Review the official SAP documentation for the migration tool, which may provide insights into common pitfalls and configuration requirements.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance, providing them with detailed information about the error and the context in which it occurs.