Office 365 – SharePoint online Extranet Invites
Office 365 – SharePoint online Extranet Invites
The office 365 SharePoint online has Extranet feature to invite external people (without any online license) to access your site and work on it ( as Visitor or as contributor etc) . By default you get 50 such users invites free and you can opt for more if required by paying very little amount as compared to regular online SharePoint licenses. For this you have to send invite to people on their live email account and give them permissions using their live email account for example you can give permissions to externaluser@hotnmail.com and send him email . once he receives email , he can click on link in the email and logon to online site using his live email account and will be able to access
Open the Portal.microsoftonline.com using admin credentials and click on Manage under SharePoint online
Click on Manage Site collections
Select the Site collection on which you want to give access to external users
lick on Settings and select Manager External Users: Allow the access to external users in popup dialog
Goto Site – Actions – Find External users permissions- Click on that
Type in the external users live email accounts, type a message to be sent in email and click Ok
Go and check the external live meeting account email … you would have received an email from Tenant Administrator of Online Account . open it . it will have a link to external SharePoint site and button to accept the invitation. Click on Invitation. It will open the browser for logon to online account where you have to provide your live account email address . if you are already logged into your live account , it may not ask for credentials and will log you on to the site directly.
The above screen shot shows how the logon service responds when you type in your Hotmail account emailid for logging into online portal site of Office 365
Also refer to : https://office.microsoft.com/en-us/sharepoint-online-enterprise-help/share-a-site-with-external-users-HA102476183.aspx