How To Fix TG490 - RDDRMMAC deletes nametab entries generated by the export

SAP Error Message - Details

• Message type: E = Error

• Message class: TG - Messages for Upgrade Repository Switch

• Message number: 490

• Message text: RDDRMMAC deletes nametab entries generated by the export

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message TG490 - RDDRMMAC deletes nametab entries generated by the export ?

  The SAP error message TG490, specifically related to RDDRMMAC, indicates that there is an issue with the deletion of nametab entries generated during an export process. This error typically arises in the context of data transport or system export/import operations.
  Cause:
  
  Inconsistent Data: The error may occur if there are inconsistencies in the data being exported or if the nametab entries are not properly aligned with the data structure.
  Transport Directory Issues: Problems with the transport directory or the transport request can lead to this error. This could include missing files or incorrect configurations.
  Authorization Issues: Lack of proper authorizations for the user performing the export can also trigger this error.
  System Configuration: Misconfigurations in the SAP system or issues with the transport management system (TMS) can lead to this error.
  
  Solution:
  
  Check Transport Directory: Ensure that the transport directory is correctly set up and that all necessary files are present. You can check the transport logs for any missing entries.
  Review Data Consistency: Validate the data being exported to ensure that it is consistent and adheres to the expected structure. You may need to run consistency checks or data validation reports.
  Authorization Check: Verify that the user has the necessary authorizations to perform the export. You may need to consult with your SAP security team to ensure proper roles are assigned.
  Recreate Transport Request: If the transport request is corrupted, consider recreating it. This may involve re-exporting the objects or data.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error. SAP frequently releases updates and patches that can resolve known issues.
  System Logs: Review system logs (transaction SM21) for any additional error messages or warnings that could provide more context about the issue.
  
  Related Information:
  
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance. They can provide more detailed troubleshooting steps based on your specific system configuration.
  Documentation: Refer to the official SAP documentation for transport management and data export processes to ensure that you are following best practices.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed. Other users may have encountered the same error and can share their solutions.
  
  By following these steps, you should be able to identify the root cause of the TG490 error and implement a suitable solution.