You want to check if single sign on (SSO) from sap portal to abap is working

Log on to portal

Try to run an abap transaction in portal by followings.

Log on to portal -> System Administration – > Support – > Test and Configuration Tools -> SAP Application – > SAP Transaction

System: Choose system to be tested

Transactioncode: for example sm50

SAP-GUI-Typ: SAP GUI for Windows

and press “Go”.

SSO is working, if you can run the transaction without entering user and password.