How To Fix MD_LOG009 - Exception class &1 is not associated with a T100 message class

SAP Error Message - Details

• Message type: E = Error

• Message class: MD_LOG - Message Class of CMD log

• Message number: 009

• Message text: Exception class &1 is not associated with a T100 message class

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MD_LOG009 - Exception class &1 is not associated with a T100 message class ?

  The SAP error message MD_LOG009 indicates that there is an issue with the exception class not being associated with a T100 message class. This typically occurs in the context of SAP's message handling system, where certain exceptions are expected to be linked to specific message classes for proper error reporting.
  Cause:
  
  Missing Message Class: The exception class that is being raised does not have a corresponding entry in the T100 message class table. This means that when the system tries to retrieve a user-friendly message for the exception, it cannot find it.
  Custom Development: If the exception class is part of a custom development or enhancement, it may not have been properly registered with the message class.
  Configuration Issues: There may be configuration issues in the system that prevent the proper association of exception classes with message classes.
  
  Solution:
  
  Check Exception Class: Identify the exception class that is causing the error. You can do this by looking at the details of the error message or the code that is triggering the exception.
  Verify T100 Entries: Go to transaction SE91 (Message Class Maintenance) and check if the message class associated with the exception class exists. If it does not, you may need to create it.
  Create/Update Message Class:
  
  If the message class does not exist, create a new message class and add the necessary messages.
  If it exists but is missing the specific message, add the required message to the class.
  
  
  Check Custom Code: If the exception is part of custom code, ensure that the code is correctly implemented and that the exception handling is properly set up to reference the correct message class.
  Transport Changes: If you made changes in a development environment, ensure that they are transported to the quality and production environments.
  
  Related Information:
  
  Transaction Codes:
  
  SE91: For managing message classes.
  SE80: For checking the related ABAP code and exception classes.
  
  
  Documentation: Review SAP documentation on exception handling and message classes for more detailed guidance.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  
  If the problem persists after following these steps, consider reaching out to your SAP support team or consulting the SAP Community for further assistance.