How To Fix XM028 - Not logged on in interface &2 (function &1)

SAP Error Message - Details

• Message type: E = Error

• Message class: XM - XMI interface and SMAPIS messages to XMI log

• Message number: 028

• Message text: Not logged on in interface &2 (function &1)

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 XM028 - Not logged on in interface &2 (function &1) ?

  The SAP error message XM028 "Not logged on in interface &2 (function &1)" typically indicates that there is an issue with the communication between the SAP system and an external interface or system. This error can occur in various scenarios, such as when trying to call a function module or when there is a problem with the connection to an external system.
  Causes:
  
  Session Timeout: The user session may have timed out, leading to a loss of connection to the interface.
  Incorrect Configuration: The interface may not be properly configured, leading to authentication or connection issues.
  Network Issues: There may be network connectivity problems between the SAP system and the external interface.
  Authorization Issues: The user may not have the necessary authorizations to access the specified function or interface.
  System Errors: There could be underlying system errors or issues with the external system that prevent successful communication.
  
  Solutions:
  
  Re-login: If the session has timed out, try logging back into the SAP system and reattempting the operation.
  Check Configuration: Review the configuration settings for the interface to ensure that they are correct. This includes checking RFC destinations, connection parameters, and any relevant settings in transaction codes like SM59 (for RFC connections).
  Network Troubleshooting: Verify network connectivity between the SAP system and the external interface. This may involve checking firewalls, network routes, and ensuring that the external system is up and running.
  Authorization Check: Ensure that the user has the necessary authorizations to access the function and interface. This can be checked in transaction SU53 or by consulting with your security team.
  Review Logs: Check the system logs (transaction SM21) and application logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  Contact Support: If the issue persists, consider reaching out to SAP support or your internal IT support team for further assistance.
  
  Related Information:
  
  
  Transaction Codes: 
  
  SM59: For checking and configuring RFC connections.
  SU53: To analyze authorization issues.
  SM21: To view system logs.
  SLG1: To view application logs.
  
  
  
  Documentation: Refer to SAP Help Portal or relevant SAP Notes for detailed information on the specific function or interface you are working with.
  
  
  By following these steps, you should be able to diagnose and resolve the XM028 error in your SAP system.