Abstract: The techniques described herein facilitate sharing electronic cloud-based calendars via online application and collaboration services, e.g., Microsoft Office 365®. In an implementation, a method of operating an online application and collaboration service for sharing electronic calendars between mailboxes is disclosed. The method includes receiving a request to share a master calendar owned by a first user of the online application and collaboration service with a second user. The master calendar is stored in the first user's mailbox. The method further includes communicating a response indicating acceptance of the request to share the master calendar, generating a copy of the master calendar in the second user's mailbox, and synching the copy of the master calendar with the master calendar using pre-cached data to populate an initial view.

Abstract: Using a set of alternative events with both modern and legacy systems. A method includes identifying a master message including a set of alternative events formatted for a modern system. The master message includes default information for all events in the set of alternative events as well as exception information representing exceptions to the default information for individual events in the set of alternative of events. A plurality of instance messages is identified. Each of the instance messages includes default information from the master message and exception information for a given event in the set of alternative events. The master message and the instance messages are sent to other systems without regard to whether the other systems are modern or legacy systems so as to allow modern systems to select event alternatives using the master message and to allow legacy systems to select event alternatives using the instance messages.

Abstract: The techniques described herein facilitate sharing electronic cloud-based calendars via online application and collaboration services, e.g., Microsoft Office 365®. In an implementation, a method of operating an online application and collaboration service for sharing electronic calendars between mailboxes is disclosed. The method includes receiving a request to share a master calendar owned by a first user of the online application and collaboration service with a second user. The master calendar is stored in the first user's mailbox. The method further includes communicating a response indicating acceptance of the request to share the master calendar, generating a copy of the master calendar in the second user's mailbox, and synching the copy of the master calendar with the master calendar using pre-cached data to populate an initial view.

Abstract: Using a set of alternative events with both modern and legacy systems. A method includes identifying a master message including a set of alternative events formatted for a modern system. The master message includes default information for all events in the set of alternative events as well as exception information representing exceptions to the default information for individual events in the set of alternative of events. A plurality of instance messages is identified. Each of the instance messages includes default information from the master message and exception information for a given event in the set of alternative events.