How To Fix ICF_SYSTEM_LOGIN001 - Switch to HTTP not possible: logon ticket active for HTTPS only

ICF_SYSTEM_LOGIN001 - Overview

• Message type: E = Error

• Message class: ICF_SYSTEM_LOGIN - Messages for System Logon

• Message number: 001

• Message text: Switch to HTTP not possible: logon ticket active for HTTPS only

What causes this issue?

Profile parameter <LS>login/ticket_only_by_https</> has the value 1. So
the logon ticket (SSO2) can be issued for HTTPS only.

System Response

No switch has been made to HTTP.

How to fix this error?

If you want to run the application under HTTP, change this profile
parameter to "0", or use a different authentication procedure.

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 ICF_SYSTEM_LOGIN001 - Switch to HTTP not possible: logon ticket active for HTTPS only ?

  The SAP error message ICF_SYSTEM_LOGIN001 indicates that there is an issue with the logon ticket being active for HTTPS only, which prevents switching to HTTP. This typically occurs in scenarios where the system is configured to use secure connections (HTTPS) and a user attempts to log in using an insecure connection (HTTP).
  
  Cause:
  
  Logon Ticket Configuration: The system is configured to issue logon tickets that are valid only for HTTPS connections. If a user tries to access the system via HTTP, the system will reject the request because the logon ticket is not valid for that protocol.
  System Settings: The ICF (Internet Communication Framework) settings may be configured to enforce HTTPS for certain services or applications, leading to this error when trying to access them via HTTP.
  User Session: If a user has already logged in using HTTPS and then tries to switch to HTTP, the existing logon ticket will not be valid for