How To Fix CNV20200008 - No optimization: No domains/ table fields are excluded

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20200 - Messages for development class CNV_20200

• Message number: 008

• Message text: No optimization: No domains/ table fields are excluded

What causes this issue?

You selected the setting 'Do not execute optimization'. This has the
following consequences:
No domains are excluded from the conversion.
No table fields are excluded from the conversion.

System Response

Warning
This is not the standard setting for this activity.
It is likely to lead to substantially longer runtimes.

How to fix this error?

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

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 CNV20200008 - No optimization: No domains/ table fields are excluded ?

  The SAP error message CNV20200008: No optimization: No domains/table fields are excluded typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that the system has not identified any fields or domains that can be excluded from the optimization process, which may lead to performance issues or unnecessary data processing.
  Cause:
  
  No Excluded Fields: The primary cause of this error is that the migration or conversion process has not been configured to exclude any specific fields or domains. This can happen if the configuration settings do not specify any fields to be optimized or excluded.
  Configuration Issues: There may be issues in the configuration of the migration project, such as missing or incorrect settings that prevent the identification of fields for exclusion.
  Data Model: The data model being used may not have any fields that are eligible for exclusion based on the criteria set in the migration tool.
  
  Solution:
  
  Review Migration Settings: Check the settings in the migration cockpit or the relevant migration tool to ensure that you have specified fields or domains that can be excluded from the optimization process.
  Define Exclusions: If applicable, define specific fields or domains that should be excluded from the migration. This can help improve performance and reduce the amount of data being processed.
  Consult Documentation: Refer to the SAP documentation for the migration tool you are using to understand how to configure exclusions properly.
  Check Data Model: Review the data model to ensure that there are indeed fields that can be excluded. If not, consider whether the data model needs to be adjusted.
  Contact SAP Support: If you are unable to resolve the issue through configuration changes, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  Migration Cockpit: Familiarize yourself with the SAP S/4HANA Migration Cockpit, as it provides tools and guidelines for data migration.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on optimizing data migration.
  Performance Tuning: Consider general performance tuning practices for data migration, such as batch processing and parallel processing, to enhance the overall efficiency of the migration process.
  
  By addressing the configuration and ensuring that appropriate fields are excluded, you should be able to resolve the CNV20200008 error and proceed with your data migration successfully.