Office 365 – Invite external people to access to your SharePoint site

With Office 365, it is possible to invite external people to access your private SharePoint collections.

However, this feature is not enable by default.

So, to enable this feature, there are few actions to do.

First, connect to the SharePoint Administration portal (https://yourdomain-admin.sharepoint.com) and go to the Site Collection Management

Select the site collection on which you want to allow external user invitation and click on the Manage Share by Email button

Click on the Enable option

Then connect to your site collection and go to the Site Settings

Then click on the Site collection features link

Enable the feature External user invitations

Finally, open the Site Actions menu and click on Share Site

Enter external user email addresses on the field associated with the right level to provide to external user

A confirmation is shown if email invitation has been sent successfully

External user receive the invitation to access your SharePoint site

Once external user has accepted the invitation, it appears on the People and Groups list and no license has been consumed