The UserWell property determines whether the user is required, optional, or a resource.
Attendee object
Long
Read/write
The UserWell property is required when specifying attendees for a meeting request. This property can have one of the following values.
| Value | Description |
|---|---|
| 0 | Owner. |
| 1 | Required; interpreted by MAPI as a recipient in a message’s To field. |
| 2 | Optional; interpreted by MAPI as a recipient in a message’s CC field. |
| 3 | Resource; interpreted by MAPI as a recipient in a message’s BCC field. |