Prerequisites 
This section provides an overview of the absolutely essential steps that you must carry out to ensure the logon functionality runs smoothly.
SAP Web AS System
You are using an SAP Web AS 6.20 system and have implemented at least Support Package 3.
Checklist for configuration in the system
The following is set in the SAP Web AS System.
Short instructions for configuring the security functionality (SSO2)
Note that the SAP Cryptographic Library is not needed. For SSO2 the SAP Security Library is sufficient. This delivered in the standard SAP Web AS System.
...
1. Profile parameters login/accept_sso2_ticketand login/create_sso2_ticket are set to 1.
You can find
details in 
configuring the system
so that is displays logon tickets.
2. The system is now restarted.
3.
The SAP Web AS is
configured for using SSL
(optional, but recommended):
...
a.
A PSE was
generated.
You can find details in Creating SSL Server
PSE.
b.
A certificate requirement
was created for the PSE.
You can find details in Creating Certificate
Requirements for the SSL Server PSEs.
c.
The certificate
requirement was sent to a certification authority (CA)
You can find details in Sending Certificate
Requirements to a CA.
d.
The generated PSE was
imported.
You can find details in Importing Certificate
Replies.
e.
The certificate list of
the PSE was entered.
You can find details in Maintaining the SSL
Server PSE Certificate List
These settings
are all explained in Security on the SAP
Web Application Server.
See also Note 51006
“Setting Up SSL On the Web Application Server”.
Configuring the Internet Communication Manager (ICM)
In the Internet Communication
Manager you have configured the HTTPS service (in Goto
®
Services
in Transaction
SMICM), see also Displaying and
Changing Services.
Testing the settings