How To Fix CNV20200280 - &1 (&2) set to READONLY in CNVFIELDS

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20200 - Messages for development class CNV_20200

• Message number: 280

• Message text: &1 (&2) set to READONLY in CNVFIELDS

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20200280 - &1 (&2) set to READONLY in CNVFIELDS ?

  The SAP error message CNV20200280 indicates that a field in the CNVFIELDS table is set to READONLY, which means that it cannot be modified or updated during the data migration process. This error typically arises in the context of SAP's data migration tools, particularly when using the SAP S/4HANA Migration Cockpit or other data conversion tools.
  Cause:
  
  Field Configuration: The field in question may be configured as READONLY in the system due to its nature or the way it is defined in the data model.
  Data Migration Settings: The migration settings or the mapping configuration may not allow changes to certain fields, especially if they are critical for data integrity.
  Technical Restrictions: Some fields are inherently READONLY due to their technical characteristics, such as system-generated fields or fields that are derived from other data.
  
  Solution:
  
  Check Field Properties: Review the properties of the field in the CNVFIELDS table to understand why it is set to READONLY. You may need to consult the data model or documentation for the specific migration scenario you are working with.
  Adjust Migration Mapping: If the field is not supposed to be modified during the migration, ensure that your mapping configuration reflects this. You may need to exclude the field from the migration process or ensure that it is populated correctly before the migration.
  Consult Documentation: Refer to the SAP documentation related to the specific migration tool you are using. There may be guidelines or best practices for handling READONLY fields.
  Contact SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support for assistance. They can provide insights specific to your system configuration and migration scenario.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context on handling READONLY fields during migration.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific data migration tool you are using, as it may contain troubleshooting steps or configuration guidelines.
  Community Forums: Engage with the SAP Community or other forums where SAP professionals discuss similar issues. You may find others who have encountered the same error and can share their solutions.
  
  By following these steps, you should be able to identify the cause of the error and implement a suitable solution.