How To Fix CNV_10020397 - &1 existing logs were deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 397

• Message text: &1 existing logs were deleted

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10020397 - &1 existing logs were deleted ?

  The SAP error message CNV_10020397 typically indicates that existing logs have been deleted during a data migration or conversion process. This error is part of the SAP Conversion and Migration tools, often related to the SAP S/4HANA migration or other data transformation projects.
  Cause:
  
  
  Log Deletion: The error suggests that the logs that were supposed to be retained for tracking the migration process have been deleted. This could happen due to:
  
  Manual deletion of logs by users.
  Automatic cleanup processes that are configured to remove old logs.
  System settings that limit the retention period of logs.
  
  
  
  Configuration Issues: There may be configuration settings in the migration tool that dictate how logs are handled, which could lead to premature deletion.
  
  
  System Errors: There could be underlying system errors or issues that caused the logs to be deleted unexpectedly.
  
  
  Solution:
  
  
  Check Log Retention Settings: Review the configuration settings for log retention in the migration tool. Ensure that the settings are appropriate for your needs and that logs are not being deleted too soon.
  
  
  Review System Cleanup Jobs: Check if there are any scheduled jobs or background processes that might be deleting logs. Adjust the settings to prevent premature deletion.
  
  
  Re-run the Migration Process: If the logs are critical for the migration process, you may need to re-run the migration or conversion process to generate new logs.
  
  
  Consult SAP Notes: Look for relevant SAP Notes or documentation that may provide specific guidance or patches related to this error. SAP frequently updates its knowledge base with solutions for known issues.
  
  
  Contact SAP Support: If the issue persists or if you need further assistance, consider reaching out to SAP Support for help. They can provide insights based on the specific context of your system and migration.
  
  
  Related Information:
  
  SAP Migration Cockpit: Familiarize yourself with the SAP Migration Cockpit, which is often used for data migration to S/4HANA. Understanding its logging and error handling mechanisms can help in troubleshooting.
  Data Migration Best Practices: Review best practices for data migration, including how to handle logs and monitor the migration process effectively.
  System Monitoring: Implement monitoring tools to keep track of log files and system performance during migration activities.
  
  By addressing the root cause of the log deletion and ensuring proper configuration, you can mitigate the occurrence of this error in future migration processes.