Steps to make any Joomla user a vendor?

This is a very basic question. I am stuck at this. How can any Joomla user become a vendor and start selling? Exactly what steps are involved? Is there a become a vendor link or set up online shop link or something? When I see all Joomla users as shoppers in Virtuemart, the seller field is unpublished/not-active by default. What am I missing?

Hello,

There are actually to actions that can turn a user into a vendor:

VMVendor Front end
- adding a product via the VMVendor product form
- updating own vendor profile for the 1st time.

I guess Virtuemart Backend also allows to turn an existing VMuser (customer) into a vendor.