SAP NW SSO - SNC logon with User Password

Hello Experts,

Currently we don't have NW SSO license so we want to use SNC logon with user password in GUI-

So my question is how can we test the same, If I am login with AD user , which password do I need to supply, it's windows password or SAP password ?

SPN  is -

C:\Windows\system32>setspn -l KERBEROSED1

Registered ServicePrincipalNames for CN=KERBEROSED1,OU=Services,OU=Internal Accounts,DC=abc,DC=def:

HTTP/ancecdci1.abc.def

SAP/KERBEROSED1

I have already maintained user snc tab and SNC parameters

snc/identity/as                             p:CN=SAP/KERBEROSED1@xvz.com

SNC tab -

p:CN=ED1ADM@abc.def

Trust is setup between xyz.com and abc.def domain and I am testing with user <SID>adm which is created on domain abc.def but I am not able to login from windows password.

Please suggest.

Saurabh