How To Fix GU161 - Message type & is invalid

SAP Error Message - Details

• Message type: E = Error

• Message class: GU - FI-SL utilities

• Message number: 161

• Message text: Message type & is invalid

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 GU161 - Message type & is invalid ?

  The SAP error message GU161 ("Message type & is invalid") typically occurs when there is an issue with the message type being used in a transaction or process. This error can arise in various contexts, such as during the processing of inbound or outbound messages, particularly in the context of IDocs (Intermediate Documents) or other messaging systems within SAP.
  Cause:
  
  Invalid Message Type: The message type specified in the transaction does not exist in the system or is not correctly defined.
  Configuration Issues: The message type may not be properly configured in the relevant application area (e.g., IDoc configuration).
  Typographical Errors: There may be a typo in the message type entered by the user.
  Missing Customizations: If the message type is a custom one, it may not have been properly created or activated in the system.
  
  Solution:
  
  Check Message Type: Verify that the message type you are using is valid. You can do this by checking the configuration in the relevant transaction (e.g., WE81 for IDoc message types).
  Configuration Review: Ensure that the message type is correctly configured in the system. This may involve checking the settings in transaction WE30 (for IDoc types) or WE81 (for message types).
  Correct Typographical Errors: Double-check the input for any typos or incorrect entries.
  Custom Message Types: If you are using a custom message type, ensure that it has been created and activated properly. You may need to consult with your SAP development team to confirm this.
  Consult Documentation: Review SAP documentation or notes related to the specific message type you are working with for any additional guidance or troubleshooting steps.
  
  Related Information:
  
  Transaction Codes: 
  
  WE30: IDoc Type Maintenance
  WE81: Message Type Maintenance
  WE20: Partner Profile Maintenance
  
  
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance related to the specific message type.
  Debugging: If the issue persists, consider using the SAP debugger to trace the process and identify where the invalid message type is being referenced.
  
  If you continue to experience issues after following these steps, it may be beneficial to reach out to your SAP support team or consult with an SAP expert for further assistance.