Wayne Connect offers calendaring which can be used to easily manage and schedule meetings with other users. Follow the steps below to mark attendance as optional in a calendar event invite. Create a new calendar event by clicking the arrow next to New+ in either Outlook or your Outlook calendar. Click Calendar Event. Add attendants under People. In each case for which the recipient was 'automatically' being added as optional to the invite, they were able to change the following setting. They navigate to the 'Conversations' section of the Team's associated Sharepoint site. This brought them to an Outlook for Office 365 URL.
-->This example creates an appointment item as a meeting request, specifies the time, recipients, and location of the meeting, and displays the appointment in an inspector.
Example
Outlook Optional Invite
In Outlook, a meeting request is an AppointmentItem. To set an appointment item as a meeting request, you must set the MeetingStatus property to olMeeting. Use the Type property of the Recipient object to specify if the meeting attendee is optional, or if a recipient is actually a meeting resource instead of an attendee.
Microsoft Outlook Optional Send Invite Email
If you use Visual Studio to test this code example, you must first add a reference to the Microsoft Outlook 15.0 Object Library component and specify the Outlook variable when you import the Microsoft.Office.Interop.Outlook namespace. The Imports or using statement must not occur directly before the functions in the code example but must be added before the public Class declaration. The following lines of code show how to do the import and assignment in Visual Basic and C#.