I am new to SharePoint 2013, and I am now trying to learn about SharePoint 2013 by myself . I created my site in SharePoint 2013 in cloud service using Office 365. After I created my site, I need to add users and create group for my site. How do I add users like other mail id's? I went to Site Permission, and it is asking to invite people to 'Full control', etc. But in that column, if I give any other new mail id it does not accept it.
How do I populate the members mail id, or how do I access or create members mail id in my site? Then only I can invite people to access permission for my site.
I cannot access other mail id in my site. How do I create other mail id and populate that in textbox while giving permission? I am trying all of this in Cloud service.