How To Fix CNV20200458 - &1: in CNVFIELDSCU added with ReadOnly indicator set

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20200 - Messages for development class CNV_20200

• Message number: 458

• Message text: &1: in CNVFIELDSCU added with ReadOnly indicator set

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20200458 - &1: in CNVFIELDSCU added with ReadOnly indicator set ?

  The SAP error message CNV20200458 typically relates to issues encountered during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. The error indicates that a field in the CNVFIELDSCU table has been marked as ReadOnly, which means that it cannot be modified or updated during the conversion process.
  Cause:
  
  ReadOnly Indicator: The field in question has been set with a ReadOnly indicator in the CNVFIELDSCU table. This usually means that the field is not intended to be changed during the migration process, possibly due to data integrity or business logic constraints.
  Configuration Issues: There may be a misconfiguration in the migration settings or mapping that is attempting to write to a field that should not be modified.
  Data Model Changes: Changes in the data model between the source and target systems may lead to fields being marked as ReadOnly in the target system.
  
  Solution:
  
  Review the Mapping: Check the mapping configuration in the migration cockpit or tool you are using. Ensure that you are not trying to write to a ReadOnly field.
  Adjust the Migration Logic: If the field is indeed necessary for the migration, you may need to adjust the migration logic to exclude this field or handle it differently.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using to understand the implications of ReadOnly fields and how to handle them.
  Data Validation: Ensure that the data being migrated does not include any attempts to modify ReadOnly fields. Validate the data before migration.
  Seek Support: If the issue persists, consider reaching out to SAP support or consulting with an SAP expert who can provide guidance based on the specific context of your migration.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit, which may provide insights into handling ReadOnly fields.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to address the CNV20200458 error and proceed with your data migration successfully.