How To Fix SHMM030 - No external session available for extended display

SAP Error Message - Details

• Message type: E = Error

• Message class: SHMM - Shared Objects Monitor

• Message number: 030

• Message text: No external session available for extended display

What causes this issue?

The enhanced display of the root object is based on the ABAP Debugger
and requires a further external session (window). However all available
external sessions are already open.

System Response

The alternative root object display is started.

How to fix this error?

Close a GUI window so that an external session is available for the
enhanced display.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SHMM030 - No external session available for extended display ?

  The SAP error message SHMM030: No external session available for extended display typically occurs when there is an issue with the connection between the SAP GUI and the SAP application server, particularly when trying to use the extended display feature. This can happen in various scenarios, such as when using transaction codes that require an external session or when trying to display certain types of data.
  Causes:
  
  Session Limitations: The user may have reached the maximum number of allowed sessions in the SAP system.
  Network Issues: There may be network connectivity problems between the SAP GUI and the application server.
  Configuration Issues: The SAP system may not be properly configured to allow external sessions.
  SAP GUI Version: The version of the SAP GUI being used may not be compatible with the SAP application server.
  User Authorizations: The user may not have the necessary authorizations to open an external session.
  
  Solutions:
  
  
  Check Session Limits:
  
  Ensure that you have not exceeded the maximum number of sessions allowed. You can check this in the SAP GUI by going to the menu and selecting System > Status to see the number of active sessions.
  
  
  
  Network Connectivity:
  
  Verify that there are no network issues. Check your internet connection and ensure that you can connect to the SAP server without interruptions.
  
  
  
  Configuration Settings:
  
  Check the configuration settings in the SAP system. Ensure that the parameters for external sessions are correctly set. This may require assistance from your SAP Basis team.
  
  
  
  Update SAP GUI:
  
  Ensure that you are using the latest version of the SAP GUI. If not, consider updating to the latest version that is compatible with your SAP system.
  
  
  
  User Authorizations:
  
  Verify that your user account has the necessary authorizations to open external sessions. If not, contact your SAP security administrator to adjust your permissions.
  
  
  
  Restart SAP GUI:
  
  Sometimes, simply restarting the SAP GUI can resolve temporary issues.
  
  
  
  Check SAP Notes:
  
  Look for any relevant SAP Notes that may address this specific error. SAP frequently updates its knowledge base with solutions for known issues.
  
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for more details on session management and configuration.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  SAP Support: If the issue persists, consider reaching out to SAP Support for further assistance.
  
  By following these steps, you should be able to diagnose and resolve the SHMM030 error in your SAP environment.