How To Fix SHTTP079 - You have already activated the system logon

SAP Error Message - Details

• Message type: E = Error

• Message class: SHTTP - Messages for Development Class SHTTP

• Message number: 079

• Message text: You have already activated the system logon

What causes this issue?

You have already activated the system logon under "Error Page/Logon". If
you now remove the entry for <LS>Fields Authentication</> and the entry
<LS>Basic Authentication</>, the system logon cannot be performed
correctly.

System Response

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

How to fix this error?

If you want to delete the entries, you must first deactivate the system
logon.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SHTTP079 - You have already activated the system logon ?

  The SAP error message SHTTP079, which states "You have already activated the system logon," typically occurs when there is an attempt to log in to an SAP system that has already been activated for logon. This can happen in various scenarios, such as when multiple sessions are opened or when there is a misconfiguration in the system.
  Cause:
  
  Multiple Logon Attempts: The user may have already logged into the system in another session or browser tab.
  Session Management: The system may have session management settings that prevent multiple logins from the same user.
  Configuration Issues: There may be issues with the configuration of the SAP system or the web dispatcher that manages logon requests.
  Network Issues: Sometimes, network issues can cause the system to think that a session is still active when it is not.
  
  Solution:
  
  Check Active Sessions: Ensure that you do not have multiple active sessions. Log out from any other sessions before trying to log in again.
  Clear Browser Cache: If you are using a web interface, clearing the browser cache and cookies may help resolve the issue.
  Restart the Browser: Close the browser completely and reopen it to ensure that no lingering sessions are active.
  Log Out Properly: If you have access to the system, make sure to log out properly from all sessions.
  Check System Configuration: If the issue persists, check the configuration settings of the SAP system and the web dispatcher to ensure they are set up correctly for handling logon requests.
  Contact Support: If none of the above solutions work, consider reaching out to your SAP Basis team or SAP support for further assistance.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to SHTTP079 for any specific patches or updates that may address this issue.
  System Logs: Review system logs for any additional error messages or warnings that may provide more context about the issue.
  User Management: Ensure that user management settings are correctly configured to allow multiple sessions if that is a requirement for your organization.
  
  By following these steps, you should be able to resolve the SHTTP079 error and successfully log into your SAP system.