How To Fix CNVMBT068 - Table &1 contains a not supported table key and could not be handled

SAP Error Message - Details

• Message type: E = Error

• Message class: CNVMBT - Messages for MBT/API/PCL

• Message number: 068

• Message text: Table &1 contains a not supported table key and could not be handled

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNVMBT068 - Table &1 contains a not supported table key and could not be handled ?

  The SAP error message CNVMBT068 indicates that there is an issue with a table key in a specific table (denoted as &1 in the error message) that is not supported by the system. This error typically arises during data migration or conversion processes, particularly when using the SAP Migration Cockpit or other data transfer tools.
  Cause:
  
  
  Unsupported Table Key: The table in question has a key that is not recognized or supported by the migration tool. This could be due to:
  
  The key being a composite key that the tool does not handle.
  The key containing data types or structures that are incompatible with the migration process.
  The table being a custom or non-standard table that does not conform to expected formats.
  
  
  
  Data Model Changes: If the data model has changed (e.g., during an upgrade or system conversion), the migration tool may not be able to map the old keys to the new structure.
  
  
  Configuration Issues: There may be configuration settings in the migration tool that are not set correctly, leading to the inability to process certain keys.
  
  
  Solution:
  
  
  Check Table Structure: Review the structure of the table mentioned in the error message. Ensure that the key fields are correctly defined and supported by the migration tool.
  
  
  Modify Key Definition: If possible, modify the key definition to use supported fields or create a new key that aligns with the migration tool's requirements.
  
  
  Data Mapping: Ensure that the data mapping in the migration tool is correctly configured. You may need to adjust the mapping settings to accommodate the specific key structure.
  
  
  Consult Documentation: Refer to the SAP documentation for the migration tool you are using. There may be specific guidelines or limitations regarding table keys that you need to follow.
  
  
  Use Alternative Migration Methods: If the issue persists, consider using alternative methods for data migration, such as custom ABAP programs or other data transfer tools that can handle the specific table structure.
  
  
  Contact SAP Support: If you are unable to resolve the issue, consider reaching out to SAP Support for assistance. They may provide insights or patches that address the problem.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on handling unsupported table keys.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific tool you are using for data migration.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues 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.