<div>
<div class="content wysiwyg-content">
I am working on incorporating a Calendar web part into my Sharepoint Online (O365) Team Site.<br />
However, people's mailboxes aren't in Exchange Online, and I'm not sure exactly how the Calendar web part is supposed to be useful. <br />
<br />
If I have multiple Calendars across various Team Sites, how would a use be able to see those from their primary dashboard of Calendar viewing, which is Outlook 2013? <br />
<br />
If not, then is there at least a way to make new events put on the calendar automatically send invites to the users so they can accept and keep a copy on their Outlook? And receive cancellations upon those events being deleted as well?
</div>
</div>


I am working on incorporating a Calendar web part into my Sharepoint Online (O365) Team Site.
However, people's mailboxes aren't in Exchange Online, and I'm not sure exactly how the Calendar web part is supposed to be useful. 

If I have multiple Calendars across various Team Sites, how would a use be able to see those from their primary dashboard of Calendar viewing, which is Outlook 2013? 

If not, then is there at least a way to make new events put on the calendar automatically send invites to the users so they can accept and keep a copy on their Outlook? And receive cancellations upon those events being deleted as well?

SharePoint Online - Calendar - benefits and use?

Microsoft Sharepoint is a software platform and family of software products used for collaboration and web publishing combined. These capabilities include developing web sites, portals, intranets, content management systems, search engines, wikis, blogs, and other tools for business intelligence and collaboration. SharePoint has a Microsoft Office-like interface, and it is closely integrated with the Office suite.

Microsoft SharePoint

Office 365 is a group of software plus services subscriptions that provides productivity software and related services to its subscribers. Office 365 allows the use of Microsoft Office apps on Windows and OS X, provides storage space on Microsoft's cloud storage service OneDrive, and grants 60 Skype minutes per month. Office 365 includes e-mail and social networking services through hosted versions of Exchange Server, Skype for Business Server, SharePoint and Office Online, integration with Yammer, as well as access to the Office software. All of Office 365's components can be managed and configured through an online portal; users can be added manually, imported from a CSV file, or Office 365 can be set up for single sign-on with a local Active Directory using Active Directory Federation Services.

Microsoft 365

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.