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Appointment.displayReplyAllForm method (JavaScript API for Office v1.1)

Displays a reply form that includes the organizer and all the attendees of the selected appointment item.

Last modified: November 24, 2014

Applicable Outlook modes


Available in requirement sets




A string that contains text and HTML and that represents the body of the reply form. The string is limited to 32 KB.

Use this method only if the appointment is a meeting that involves an organizer and one or more attendees. Calendar items that do not involve attendees do not support replies.

In Outlook Web App, the reply form is displayed as a pop-out form in the 3-column view and a pop-up form in the 2- or 1-column view.

If htmlBody exceeds the 32-KB limit, displayReplyAllForm throws an exception.

The following code example in JavaScript obtains the selected item, checks if the item is an appointment, and displays a reply form to the organizer and all the attendees.

var myOm;
var myItem;

// Initialize runtime.
// The initialize function is required for all apps.
Office.initialize = function () {
    myOm = Office.context.mailbox;
    // Get the selected item.
    myItem = myOm.item;

    // Checks for the DOM to load using the jQuery ready function.
    $(document).ready(function () {
        // After the DOM is loaded, can display content in the app UI.

function displayReply()
    // Display a reply form to the organizer only if 
    // the selected item is an appointment.
    if (myitem.itemType == Office.MailboxEnums.ItemType.Appointment)
        ("<html><head><head><body>This is the body of the appointment reply.</body></html>");

App types

Mail app

Supported clients

Outlook 2013, Outlook 2013 SP1, Outlook 2013 RT, Outlook Web App, OWA for Devices, Outlook for Mac





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