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How To Fix 28508 - Error processing dependency &1: instance &2 not known


SAP Error Message - Details

  • Message type: E = Error

  • Message class: 28 - Configuration

  • Message number: 508

  • Message text: Error processing dependency &1: instance &2 not known

  • Show details Hide details
  • What causes this issue?

    When a dependency was read, an object which does not exist in the
    configuration was called.

    System Response

    The system terminated processing of the dependency.

    How to fix this error?

    The system issues an error message and will not allow you to continue with this transaction until the error is resolved.


    Error message extract from SAP system. Copyright SAP SE.


Smart SAP Assistant

  • What is the cause and solution for SAP error message 28508 - Error processing dependency &1: instance &2 not known ?

    The SAP error message 28508, which states "Error processing dependency &1: instance &2 not known," typically occurs in the context of SAP system installations, upgrades, or when managing system instances. This error indicates that the system is trying to process a dependency for a specific instance, but it cannot find the instance specified.

    Causes:

    1. Instance Not Registered: The instance specified in the error message may not be registered in the SAP system. This can happen if the instance was not created properly or if it was deleted.
    2. Configuration Issues: There may be configuration issues in the system that prevent the instance from being recognized.
    3. Transport Directory Issues: If the transport directory is not set up correctly, it may lead to instances not being recognized.
    4. Database Issues: If there are issues with the database connection or if the database instance is down, it may lead to this error.
    5. Incorrect Parameters: The parameters used to reference the instance may be incorrect or misspelled.

    Solutions:

    1. Check Instance Registration: Verify that the instance mentioned in the error message is correctly registered in the SAP system. You can do this by checking the instance configuration in the SAP Management Console (SAP MMC) or using transaction codes like SMLG or SMD.

    2. Review Configuration Files: Check the configuration files (like instance profile and SAP system profile) to ensure that the instance is correctly defined and that there are no typos or misconfigurations.

    3. Restart the Instance: If the instance is not responding, try restarting it. This can sometimes resolve temporary issues.

    4. Check Transport Directory: Ensure that the transport directory is correctly set up and that the instance is included in the transport routes.

    5. Database Connection: Verify that the database is up and running and that the connection parameters are correct. You can use transaction DBACOCKPIT to check the database status.

    6. Check Logs: Review the SAP logs (dev_* files) for any additional error messages that might provide more context about the issue.

    7. SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that might address this specific error or provide additional troubleshooting steps.

    8. Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.

    Related Information:

    • Transaction Codes: Familiarize yourself with relevant transaction codes such as SMLG, SMD, DBACOCKPIT, and SM21 for log analysis.
    • SAP Documentation: Refer to the official SAP documentation for more detailed information on instance management and troubleshooting.
    • Community Forums: Check SAP Community forums or other technical forums for similar issues and solutions shared by other users.

    By following these steps, you should be able to diagnose and resolve the error message 28508 in your SAP system.

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