Social media login enables the shoppers to login to the store using their social networking credentials.
This enables the merchant to access (permission based) the data like name and Email Id of those shoppers.
So the merchant can start establishing meaningful relationships with the users as soon as they register and
login to the store.
When customers logs in using their Google+ account, the basic information stored in their Google+ account like email-id, name,gender, location, etc. can be extracted and stored in his account details.
Building such a cool & feature rich eCommerce website will take you between 6-8 months if you hired a web agency.
With Shopnix you can create the eCommerce website in minutes