How To Fix MDG_MDF8120 - Internal error: Result of simulation cannot be displayed

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_MDF8 - Change Management

• Message number: 120

• Message text: Internal error: Result of simulation cannot be displayed

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MDG_MDF8120 - Internal error: Result of simulation cannot be displayed ?

  The SAP error message MDG_MDF8120, which states "Internal error: Result of simulation cannot be displayed," typically occurs in the context of SAP Master Data Governance (MDG) when there is an issue with the simulation process for data changes or validations. This error can arise due to various reasons, including configuration issues, data inconsistencies, or problems with the underlying logic in the simulation process.
  Possible Causes:
  
  Configuration Issues: Incorrect or incomplete configuration in the MDG system can lead to errors during the simulation process.
  Data Inconsistencies: If the data being processed has inconsistencies or does not meet the required validation rules, it may cause the simulation to fail.
  Custom Logic Errors: If there are custom enhancements or logic implemented in the MDG process, errors in this custom code can lead to internal errors.
  System Performance: Performance issues or timeouts during the simulation process can also trigger this error.
  Missing Authorizations: Lack of necessary authorizations for the user executing the simulation can lead to errors.
  
  Solutions:
  
  Check Configuration: Review the configuration settings in the MDG system to ensure that they are set up correctly. Pay special attention to the data model and validation rules.
  Data Validation: Validate the data being processed to ensure it meets all necessary criteria and does not contain inconsistencies.
  Review Custom Code: If there are any custom enhancements or logic, review the code for errors or exceptions that may be causing the issue.
  System Logs: Check the system logs (transaction SLG1) for more detailed error messages or stack traces that can provide insights into the root cause of the issue.
  Performance Monitoring: Monitor system performance to ensure that there are no bottlenecks or timeouts occurring during the simulation process.
  User Authorizations: Ensure that the user executing the simulation has the necessary authorizations to perform the action.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide patches and updates.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Documentation: Refer to the official SAP documentation for MDG to understand the expected behavior and configuration settings.
  
  If the issue persists after trying the above solutions, it may be necessary to contact SAP support for further assistance, providing them with detailed information about the error and the context in which it occurs.