Forum Is there user referral urls and if so where ?
 

I see that users can enter the referral user name of the user that sent them to the forum.
However* I have been trying to find a referral url and wondering if one even exists?

I'm talking about my 4.0 forum.

Once I open it up for payment/recurring subscriptions* the member needs to have a
referral url to refer others.

I'm lost.