How To Fix MDG_GN031 - The generator catalog does not contain logical object &4


SAP Error Message - Details

  • Message type: E = Error

  • Message class: MDG_GN - Messages from the Generator

  • Message number: 031

  • Message text: The generator catalog does not contain logical object &4

  • Show details Hide details
  • What causes this issue?

    The catalog does not contain the following object:
    Blueprint: &V1&
    Configuration object: &V2&
    Configuration key: &V3&
    Logical name: &V4&

    System Response

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

    How to fix this error?

    Procedure for System Administrators


    Error message extract from SAP system. Copyright SAP SE.


Smart SAP Assistant

  • What is the cause and solution for SAP error message MDG_GN031 - The generator catalog does not contain logical object &4 ?

    The SAP error message MDG_GN031 indicates that the generator catalog does not contain the logical object specified by the placeholder &4. This error typically occurs in the context of Master Data Governance (MDG) when the system is trying to access or process a logical object that is not defined in the generator catalog.

    Cause:

    1. Missing Logical Object: The logical object referenced in the error message is not defined in the generator catalog. This could happen if the object was never created or if it was deleted or not properly configured.
    2. Configuration Issues: There may be issues with the configuration of the MDG system, particularly in the generator settings or the logical object definitions.
    3. Transport Issues: If the system has recently undergone a transport of changes, it is possible that the logical object was not included in the transport or was not activated properly.

    Solution:

    1. Check the Generator Catalog:

      • Go to the relevant transaction (e.g., MDGIMG or SPRO) and navigate to the generator catalog settings.
      • Verify if the logical object specified in the error message exists in the catalog. If it does not, you may need to create it.
    2. Create or Update Logical Object:

      • If the logical object is missing, you can create it by following the appropriate steps in the MDG configuration.
      • Ensure that all necessary attributes and settings for the logical object are correctly defined.
    3. Review Configuration:

      • Check the configuration settings related to the generator and logical objects in the MDG system.
      • Ensure that all necessary components are activated and properly configured.
    4. Transport Management:

      • If the issue arose after a transport, check the transport logs to ensure that all necessary objects were included and activated in the target system.
      • If needed, re-transport the missing logical object or related configuration.
    5. Consult Documentation:

      • Refer to SAP documentation or notes related to MDG and the specific logical object you are working with for additional guidance.
    6. Contact SAP Support:

      • If the issue persists after checking the above points, consider reaching out to SAP support for further assistance, especially if this is a production issue.

    Related Information:

    • Transaction Codes: Familiarize yourself with relevant transaction codes such as MDGIMG, SPRO, and others that are used for configuration and troubleshooting in MDG.
    • SAP Notes: Search for SAP Notes related to MDG_GN031 for any specific patches or updates that may address this issue.
    • 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 identify the cause of the error and implement a solution to resolve it.

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