Hi Ajay,
You have to create the sap logon pad entry with SNC enabled. So please follow below steps to create the system entry with SNC, so that you it won't ask for user name/password when you try login from GUI.
- Create a New System entry with Connection type 'Group/Server selection'
- Input only 'Description' , 'System id' & 'Message server', then after you press TAB key, the 'Group server' & 'Instance comes.
-Then click Next and keep a tick mark on 'SNC Enable'. Save it and try login now.
Thanks
Sridhar