How To Fix MDG_GN027 - Data type &1 is not supported - system error

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_GN - Messages from the Generator

• Message number: 027

• Message text: Data type &1 is not supported - system error

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MDG_GN027 - Data type &1 is not supported - system error ?

  The SAP error message MDG_GN027 indicates that there is an issue with the data type being used in the Master Data Governance (MDG) system. Specifically, the error message states that the data type specified (represented by &1) is not supported, leading to a system error.
  Cause:
  
  Unsupported Data Type: The data type being referenced in the error message is not recognized or supported by the MDG framework. This could happen if the data type is custom or if there is a mismatch between the expected data types in the MDG configuration and the actual data types being used.
  Configuration Issues: There may be issues in the configuration of the MDG system, such as incorrect mappings or settings that do not align with the data model.
  Data Model Changes: If there have been recent changes to the data model or data types in the system, it could lead to this error if the changes were not properly propagated or if they conflict with existing configurations.
  Transport Issues: If the system has recently undergone a transport of changes, it is possible that the transport did not include all necessary objects or that there are inconsistencies between the development and production environments.
  
  Solution:
  
  Check Data Type: Verify the data type being used in the context where the error occurs. Ensure that it is a supported data type in the MDG system.
  Review Configuration: Go through the MDG configuration settings to ensure that all mappings and settings are correct. Pay special attention to the data model and any customizations that may have been made.
  Data Model Validation: If there have been recent changes to the data model, validate that all changes are correctly implemented and that there are no inconsistencies.
  Transport Consistency: If the error occurred after a transport, check the transport logs and ensure that all necessary objects were included in the transport. You may need to re-transport or manually adjust configurations.
  Consult Documentation: Refer to SAP documentation or notes related to the specific version of MDG you are using. There may be known issues or patches available that address this error.
  Debugging: If you have access to the development environment, consider debugging the process to identify the exact point of failure and the data type causing the issue.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues related to the MDG_GN027 error. SAP frequently updates their knowledge base with solutions to common problems.
  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 provide insights or solutions.
  SAP Support: If the issue persists and you are unable to resolve it, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including the context in which it occurs and any relevant configuration details.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.