How To Fix CNV_DMC_MC028 - Technical error: Getting selected tree node key failed

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_MC - Migration Object Modeler

• Message number: 028

• Message text: Technical error: Getting selected tree node key failed

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_MC028 - Technical error: Getting selected tree node key failed ?

  The SAP error message CNV_DMC_MC028 ("Technical error: Getting selected tree node key failed") typically occurs in the context of data migration or conversion processes, particularly when using the SAP Data Migration Cockpit (DMC) or similar tools. This error indicates that there was a failure in retrieving the key for a selected node in a tree structure, which can be due to various reasons.
  Possible Causes:
  
  Data Model Issues: The data model may not be correctly defined or may have inconsistencies that prevent the system from retrieving the necessary keys.
  Configuration Errors: Incorrect configuration settings in the migration cockpit or related tools can lead to this error.
  Authorization Issues: The user may not have the necessary authorizations to access certain nodes or data.
  Technical Glitches: Temporary technical issues or bugs in the system can also cause this error.
  Version Compatibility: There may be compatibility issues between different versions of SAP components or tools being used.
  
  Solutions:
  
  Check Data Model: Review the data model to ensure that it is correctly defined and that all necessary nodes and keys are present.
  Review Configuration: Verify the configuration settings in the migration cockpit to ensure they are set up correctly.
  User Authorizations: Ensure that the user has the necessary authorizations to access the data and nodes involved in the migration process.
  Restart the Process: Sometimes, simply restarting the migration process or the SAP system can resolve temporary glitches.
  Check Logs: Review the application logs and system logs for any additional error messages or warnings that could provide more context about the issue.
  Update SAP Components: Ensure that all relevant SAP components and tools are up to date, as updates may contain bug fixes or improvements.
  Contact SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, providing them with detailed information about the error and the context in which it occurred.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on similar issues.
  Documentation: Review the official SAP documentation for the Data Migration Cockpit and related tools for best practices and troubleshooting steps.
  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 diagnose and potentially resolve the CNV_DMC_MC028 error in your SAP environment.