URL for UWL in email

I need to provide a link in an email notification that would take the recipient directly to the UWL in portal. How do I determine what is the URL for UWL in any system? I am on EP7/SP13.

My apologies if this is not the right forum or if this question has been answered before. My search did not return any posts that could help me.

Regards,

Ramki Maley