How To Fix SMESSAGE_ADT005 - Message class &1 already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: SMESSAGE_ADT - General Message Class for ABAP Dev Tools of T100 objects

• Message number: 005

• Message text: Message class &1 already exists

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SMESSAGE_ADT005 - Message class &1 already exists ?

  The SAP error message SMESSAGE_ADT005 with the description "Message class &1 already exists" typically occurs when you are trying to create a new message class in the SAP system, but a message class with the same name already exists.
  Cause:
  The error is caused by an attempt to create a message class that has the same name as an existing one. In SAP, message classes are used to group messages that can be displayed to users, and each message class must have a unique identifier.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Message Classes:
  
  Use transaction code SE91 (Message Class Maintenance) to check if the message class you are trying to create already exists.
  Enter the name of the message class in the appropriate field and see if it is listed.
  
  
  
  Use a Different Name:
  
  If the message class already exists, consider using a different name for your new message class. Ensure that the new name adheres to the naming conventions and is unique.
  
  
  
  Modify Existing Message Class:
  
  If you need to add messages to the existing message class, you can do so by selecting the existing class in transaction SE91 and adding your messages there instead of creating a new class.
  
  
  
  Transport Requests:
  
  If you are working in a development environment and plan to transport your changes to other systems, ensure that you have the necessary transport requests set up for the message class.
  
  
  
  Related Information:
  
  Message Class: A message class in SAP is a collection of messages that can be used in various programs and applications. Each message within a class is identified by a number.
  Transaction Codes:
  
  SE91: For creating and managing message classes.
  SE80: Object Navigator, where you can also manage message classes.
  
  
  Naming Conventions: When creating message classes, follow the naming conventions set by your organization or SAP guidelines to avoid conflicts.
  
  By following these steps, you should be able to resolve the SMESSAGE_ADT005 error and successfully manage your message classes in SAP.