How To Fix CNV20200475 - Object numbers for object type &1 exist

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20200 - Messages for development class CNV_20200

• Message number: 475

• Message text: Object numbers for object type &1 exist

What causes this issue?

There are object numbers for the object type &V1&.
These may contain information that is relevant for the conversion, but
are currently not considered by the conversion.

System Response

Warning

How to fix this error?

Check these object numbers in the table ONR00.
Contact the development support.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20200475 - Object numbers for object type &1 exist ?

  The SAP error message CNV20200475, which states "Object numbers for object type &1 exist," typically occurs during data migration or conversion processes, particularly when using SAP's data migration tools. This error indicates that there are existing object numbers for the specified object type in the system, which can lead to conflicts or issues during the migration process.
  Cause:
  
  Existing Data: The error usually arises when the migration process attempts to create or modify objects that already exist in the target system. This can happen if the migration is being run multiple times without proper cleanup or if the data being migrated overlaps with existing records.
  Incorrect Mapping: There may be an issue with the mapping of object types, leading to conflicts with existing entries.
  Data Integrity Issues: The data being migrated may not adhere to the expected format or integrity constraints, causing the system to reject the operation.
  
  Solution:
  
  Check Existing Objects: Before running the migration, check the target system for existing objects of the specified type. You can use transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to inspect the relevant tables.
  Cleanup Existing Data: If the existing objects are not needed, consider deleting or archiving them before running the migration again. Ensure that you have backups and that you understand the implications of deleting data.
  Adjust Migration Parameters: Review the migration parameters and mapping settings to ensure they are correct and do not lead to conflicts with existing data.
  Use Unique Identifiers: If possible, modify the migration process to use unique identifiers for the objects being created to avoid conflicts with existing entries.
  Consult Documentation: Refer to the SAP documentation related to the specific migration tool or process you are using for any additional guidelines or troubleshooting steps.
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11, SE16, and others that can help you analyze the data in the system.
  Migration Tools: Understand the specific migration tool you are using (e.g., SAP S/4HANA Migration Cockpit, SAP Data Services) and its requirements.
  Data Migration Best Practices: Follow best practices for data migration, including thorough testing in a development or sandbox environment before executing in production.
  
  By addressing the underlying causes and following the suggested solutions, you should be able to resolve the CNV20200475 error and successfully complete your data migration process.