How To Fix CNV_INDX256 - Unknown structure variant

CNV_INDX256 - Overview

• Message type: E = Error

• Message class: CNV_INDX - Messages for conversion of INDX-like tables

• Message number: 256

• Message text: Unknown structure variant

What causes this issue?

The system was unable to recognize the variant of the RELID structure
(table &V1&, RELID='&V2&', key='&V4&'). The INDX RELID &V1&(&V2&) is not
marked to ignore such unknown variants.

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?

You can explicitly select data rows to ignore. Do it only if the data
was created by you and the inconsistencies are caused by custom data
modifications. If the data was created or modified by SAP standard
application contact SAP for support.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

CNV_INDX256 - Details

• The SAP error message CNV_INDX256 Unknown structure variant typically occurs in the context of data migration or conversion processes, particularly when using SAP's tools for data transfer or transformation. This error indicates that the system is unable to recognize a specific structure variant that is being referenced in the process.
  Causes:
  
  Missing Structure Variant: The structure variant that is being referenced in the migration or conversion process does not exist in the system.
  Incorrect Configuration: There may be a misconfiguration in the settings related to the data migration or conversion process.
  Transport Issues: If the structure variant was recently transported from another system, it may not have been transported correctly or completely.
  Version Mismatch: The structure variant may be defined in a different version of the software or in a different client.
  
  Solutions:
  
  Check Structure Variants: Verify that the structure variant exists in the system. You can do this by navigating to the relevant transaction or configuration