22.214.171.124.4.1 Proposing a New Time
Along with the response, whether Accept, Tentatively Accept, or Decline, the attendee or a delegate of the attendee can request that the organizer change the meeting date and/or time. The client MUST NOT allow the attendee or delegate of the attendee to propose a new date or time in the following cases:
The attendee is the organizer.
The Meeting Request object represents a recurring series. (However, the attendee can propose a new date and/or time for a single instance of a recurring series.)
To propose the new date and/or time, the client sets the following properties on the Meeting Response object:
The value of the PidLidAppointmentCounterProposal property (section 126.96.36.199) to TRUE.
The value of the PidLidAppointmentProposedEndWhole property (section 188.8.131.52) to the proposed new end date and time, in UTC.
The value of the PidLidAppointmentProposedDuration property (section 184.108.40.206) to the proposed new duration, in minutes.
In addition to the previous information, when proposing a new date and/or time, the client MUST NOT set the value of the PidLidIsSilent property (section 220.127.116.11) to TRUE, even if the attendee does not edit the body of the response.