How To Fix ICF_SYSTEM_LOGIN200 - SSO logon not possible; logon tickets not activated on the server

SAP Error Message - Details

• Message type: E = Error

• Message class: ICF_SYSTEM_LOGIN - Messages for System Logon

• Message number: 200

• Message text: SSO logon not possible; logon tickets not activated on the server

What causes this issue?

The issuing of logon tickets is not activated on this server.

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?

Change the profile parameter <ZK>login/create_sso2_ticket</> to 1 or 2.

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 ICF_SYSTEM_LOGIN200 - SSO logon not possible; logon tickets not activated on the server ?

  The SAP error message ICF_SYSTEM_LOGIN200 indicates that Single Sign-On (SSO) logon is not possible because logon tickets are not activated on the server. This typically occurs in environments where SSO is expected to be used, but the necessary configurations are not in place.
  Cause:
  
  Logon Tickets Not Activated: The server is not configured to accept logon tickets for SSO. This can happen if the necessary settings in the SAP system are not enabled.
  Missing Configuration: The ICF (Internet Communication Framework) services required for SSO may not be properly configured or activated.
  Incorrect System Parameters: The system parameters related to SSO and logon tickets may not be set correctly.
  Network Issues: There may be network issues preventing the proper communication between the client and the server.
  SAP Kernel Version: The version of the SAP kernel may not support the required SSO features.
  
  Solution:
  To resolve the ICF_SYSTEM_LOGIN200 error, follow these steps:
  
  
  Check ICF Services:
  
  Go to transaction SICF in the SAP GUI.
  Ensure that the necessary ICF services for SSO are activated. Look for services like sap/bc/sec/sso2 and ensure they are active.
  
  
  
  Activate Logon Tickets:
  
  In transaction RZ10, check the profile parameters related to SSO. Ensure that the following parameters are set:
  
  login/accept_sso2_ticket should be set to 1 to accept SSO2 tickets.
  login/create_sso2_ticket should be set to 1 to create SSO2 tickets.
  
  
  After making changes, restart the SAP instance for the changes to take effect.
  
  
  
  Check SAP Notes:
  
  Look for relevant SAP Notes that may address specific issues related to SSO and logon tickets. Implement any recommended corrections or updates.
  
  
  
  Review Network Configuration:
  
  Ensure that there are no network issues preventing the client from reaching the server. Check firewall settings and network routes.
  
  
  
  Check SAP Kernel Version:
  
  Ensure that you are using a compatible version of the SAP kernel that supports the SSO features you are trying to implement.
  
  
  
  Consult Documentation:
  
  Review the official SAP documentation on configuring SSO and logon tickets for your specific version of SAP.
  
  
  
  Related Information:
  
  SSO Types: Understand the different types of SSO available in SAP, such as SSO2 (using logon tickets) and SAML-based SSO.
  Security Configuration: Familiarize yourself with the security settings in SAP, including user authentication methods and authorization checks.
  SAP Community: Engage with the SAP Community or forums for additional insights and troubleshooting tips from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the ICF_SYSTEM_LOGIN200 error and enable SSO logon functionality in your SAP environment.