Posted on March 24, 2020
Virto SharePoint Calendar for Office 365 displays multiple categories from Outlook, has an option to select data storage location, get attachment support, and option to copy a data source.
Posted on November 2, 2018
Virto Office 365 Calendar app has an ability to add external users to SharePoint calendar and an option to allows access for a certain calendar to all calendars and data sources created on current site collection.
Posted on March 21, 2016
How to Create Office 365 Shared Calendar. Sharing Calendars in Office 365. Office 365 Group Calendar Sharing
Sharing calendars in Office 365 with co-workers and external users is an everyday thing in business and corporate communications. Microsoft Office 365 provides a number of solutions for calendar sharing and creating Office 365 group calendar. You might consider using third-party apps like Calendar Overlay Pro to overlay multiple group calendars in one place.