How To Fix CNV_MBT_46029 - Unknown error occurred; database may be inconsistent


SAP Error Message - Details

  • Message type: E = Error

  • Message class: CNV_MBT_46 - PCL message class

  • Message number: 029

  • Message text: Unknown error occurred; database may be inconsistent

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  • 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.



    What else can you do?

    First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

    Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

    You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.


Smart SAP Assistant

  • What is the cause and solution for SAP error message CNV_MBT_46029 - Unknown error occurred; database may be inconsistent ?

    The SAP error message CNV_MBT_46029 indicates that an unknown error has occurred during a data migration or conversion process, and it suggests that there may be inconsistencies in the database. This error is typically associated with the SAP Migration Tool (SAP S/4HANA Migration Cockpit) or other data migration scenarios.

    Possible Causes:

    1. Data Inconsistencies: The most common cause is that the source data contains inconsistencies or errors that prevent successful migration.
    2. Configuration Issues: Incorrect configuration settings in the migration tool or the source system can lead to errors.
    3. Database Locking: If the database is locked or if there are ongoing transactions that interfere with the migration process, it can lead to this error.
    4. Missing Dependencies: Required data or dependencies may be missing in the source system, causing the migration to fail.
    5. Version Compatibility: The version of the migration tool may not be compatible with the source or target system.

    Solutions:

    1. Check Logs: Review the detailed logs generated during the migration process. Look for any specific error messages or warnings that can provide more context about the issue.
    2. Data Validation: Validate the source data for inconsistencies. This may involve checking for duplicate records, missing mandatory fields, or incorrect data formats.
    3. Configuration Review: Ensure that the migration tool is correctly configured. Check the settings and parameters used in the migration process.
    4. Database Health Check: Perform a health check on the database to ensure that it is not locked and that there are no ongoing transactions that could interfere with the migration.
    5. Run Consistency Checks: Use SAP tools to run consistency checks on the database to identify and resolve any inconsistencies.
    6. Update Migration Tool: Ensure that you are using the latest version of the migration tool, as updates may contain bug fixes and improvements.
    7. Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes or knowledge base articles that may address this specific error.

    Related Information:

    • SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for assistance. Provide them with detailed logs and information about the migration process.
    • Documentation: Refer to the official SAP documentation for the migration tool you are using, as it may contain specific troubleshooting steps for common errors.
    • 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 root cause of the error and implement a solution to resolve it.

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