How To Fix CNV_MBT485 - No confirmation created, no users locked, no system message generated

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_MBT - PCL message class

• Message number: 485

• Message text: No confirmation created, no users locked, no system message generated

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_MBT485 - No confirmation created, no users locked, no system message generated ?

  The SAP error message CNV_MBT485 typically occurs during the execution of a migration or conversion process, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that no confirmation was created for the operation, and it suggests that there were no users locked and no system messages generated during the process.
  Cause:
  
  
  No Data to Process: The most common cause of this error is that there is no data available for processing in the migration or conversion task. This could happen if the selection criteria do not match any records in the source system.
  
  
  Configuration Issues: There may be issues with the configuration of the migration project, such as incorrect mapping or settings that prevent the process from executing correctly.
  
  
  Authorization Issues: The user executing the migration may not have the necessary authorizations to perform the operation, leading to a lack of confirmation.
  
  
  Technical Errors: There could be underlying technical issues, such as problems with the database connection or inconsistencies in the data model.
  
  
  Solution:
  
  
  Check Data Availability: Verify that there is data available for the migration task. Review the selection criteria and ensure that they are correctly set to match existing records.
  
  
  Review Configuration: Go through the configuration settings of the migration project. Ensure that all necessary mappings and settings are correctly defined.
  
  
  User Authorizations: Check the authorizations of the user executing the migration. Ensure that the user has the necessary permissions to perform the migration tasks.
  
  
  Log Analysis: Review the logs generated during the migration process. Look for any warnings or errors that might provide additional context about why no confirmation was created.
  
  
  Re-run the Process: After addressing any identified issues, try re-running the migration process to see if the error persists.
  
  
  Consult Documentation: Refer to the official SAP documentation or notes related to the specific migration tool you are using for any additional troubleshooting steps or known issues.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Migration Cockpit Documentation: Review the documentation for the SAP S/4HANA Migration Cockpit for best practices and troubleshooting tips.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.