To Use the Application Login and go to home page of the profile.
On Home Screen go click on Marketplace Application in Application tab
If user is not a Marketplace seller the it can become seller using EasySocial Application to Become Seller with info on EasySocial data:
When the user is Seller then its marketplace data will be displayed on the profile and home view of Marketplace Application
Its easy to use, try register using a new user and create it to a seller using One click.