How To Fix /GSINS/NLGBA_MSG021 - Message type &1 doesn't exist

SAP Error Message - Details

• Message type: E = Error

• Message class: /GSINS/NLGBA_MSG -

• Message number: 021

• Message text: Message type &1 doesn't exist

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /GSINS/NLGBA_MSG021 - Message type &1 doesn't exist ?

  The SAP error message /GSINS/NLGBA_MSG021 with the description "Message type &1 doesn't exist" typically indicates that the system is trying to reference a message type that has not been defined or is not available in the system. This can occur in various contexts, such as during the processing of inbound or outbound messages in SAP systems, particularly in the context of integration scenarios.
  Cause:
  
  Missing Configuration: The specified message type has not been configured in the system.
  Typographical Error: There may be a typo in the message type name being referenced.
  Transport Issues: The message type may exist in a different environment (e.g., development) but has not been transported to the current environment (e.g., production).
  Custom Development: If the message type is part of a custom development, it may not have been properly implemented or activated.
  
  Solution:
  
  
  Check Configuration:
  
  Go to the relevant configuration transaction (e.g., for IDoc, use transaction WE20 or WE21) and verify if the message type exists.
  If it does not exist, you may need to create it or ensure that it is properly configured.
  
  
  
  Verify Message Type:
  
  Double-check the message type being referenced in the error message. Ensure that it is spelled correctly and matches the expected format.
  
  
  
  Transport the Configuration:
  
  If the message type exists in another environment, ensure that it is transported to the current environment. Use the transport management system (TMS) to manage this.
  
  
  
  Custom Development Review:
  
  If the message type is part of a custom development, review the code to ensure that it is correctly implemented and activated. Check for any missing components or dependencies.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific module or functionality you are working with. There may be specific instructions or known issues related to the message type.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support for assistance. Provide them with the error message details and any relevant context.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as WE20 (Partner Profiles), WE21 (Port Definition), and others related to message processing.
  SAP Notes: Search for SAP Notes that may address this specific error message or provide guidance on message type configuration.
  Community Forums: Check SAP Community forums or other online resources where similar issues may have been discussed.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.