How To Fix CNV_INDX255 - Unknown structure version

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 255

• Message text: Unknown structure version

What causes this issue?

The version '&V3&' indicated in the table &V1& (RELID='&V2&', key '&V4&
') is not known by the system. If this error concerns SAP standard
application data contact SAP for support.

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 exclude this row from the conversion if it concerns your custom
data.
If this data was created or modified by an SAP application contact SAP
for support.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_INDX255 - Unknown structure version ?

  The SAP error message CNV_INDX255 Unknown structure version typically occurs during data migration or conversion processes, particularly when using SAP's data migration tools or during the execution of specific programs related to data conversion. This error indicates that the system has encountered a structure version that it does not recognize or that is not defined in the system.
  Causes:
  
  Missing or Incorrect Version Definition: The structure version that the program is trying to access may not be defined in the system or may have been deleted.
  Incompatibility: The version of the data structure being used may not be compatible with the current version of the SAP system or the migration tool.
  Configuration Issues: There may be configuration issues in the migration tool or the data structure definitions.
  Transport Issues: If the structure version was transported from another system, it may not have been transported correctly or completely.
  
  Solutions:
  
  Check Structure Definitions: Verify that the structure version exists in the system. You can do this by checking the relevant configuration or data migration settings.
  Update or Correct Version: If the structure version is missing or incorrect, you may need to create or update it in the system.
  Review Migration Tool Settings: Ensure that the migration tool is correctly configured and that it is pointing to the right structure versions.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using to ensure that you are following the correct procedures.
  Check for Notes and Patches: Look for any SAP Notes or patches that may address this specific error. Sometimes, SAP releases updates that fix known issues.
  Contact SAP Support: If the issue persists, consider reaching out to SAP support for assistance, especially if this is a production environment.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may need to use specific transaction codes to check or modify structure definitions (e.g., SE11 for Data Dictionary).
  SAP Notes: Search the SAP Support Portal for notes related to the CNV_INDX255 error for any specific fixes or recommendations.
  Migration Tools: Familiarize yourself with the specific migration tools you are using (e.g., SAP S/4HANA Migration Cockpit, SAP Data Services) as they may have their own set of guidelines and troubleshooting steps.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution.