After a meeting has been created or updated, meeting messages are sent to and from attendees of the meeting to coordinate registration and information about the meeting. A meeting request is just one type of meeting message. In Exchange Web Services, all meeting messages used for meeting workflow share a common base schema type, and that type is the MeetingMessageType schema type.
The base schema type used for all meeting messages is the MeetingMessageType schema type. Example 10-10 is the schema for the MeetingMessageType type.
Example 10-10. Schema for the MeetingMessageType type
<xs:complexType name="MeetingMessageType"> <xs:complexContent> <xs:extension base="t:MessageType"> <xs:sequence> ...