From e5b0d5887f9d2f089265c66b3258bf76a844c596 Mon Sep 17 00:00:00 2001
From: Sam Ramon <15154970+samantharamon@users.noreply.github.com>
Date: Tue, 28 Jul 2026 11:51:00 -0700
Subject: [PATCH] Document property in preview

---
 .../outlook/outlook-requirement-set-preview.md               | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/docs/requirement-sets/outlook/outlook-requirement-set-preview.md b/docs/requirement-sets/outlook/outlook-requirement-set-preview.md
index 5f959951f5..cdfd8b5fe7 100644
--- a/docs/requirement-sets/outlook/outlook-requirement-set-preview.md
+++ b/docs/requirement-sets/outlook/outlook-requirement-set-preview.md
@@ -1,7 +1,7 @@
 ---
 title: Outlook add-in API preview requirement set
 description: Features and APIs that are currently in preview for Outlook add-ins.
-ms.date: 06/23/2026
+ms.date: 07/30/2026
 ms.topic: whats-new
 ms.localizationpriority: medium
 ---
@@ -29,7 +29,8 @@ The preview requirement set includes all of the features of [requirement set 1.1
 
 The following features are in preview.
 
-- Extended support for the `errorMessageMarkdown` property of the `event.completed` method to [Smart Alerts](/office/dev/add-ins/outlook/onmessagesend-onappointmentsend-events) add-ins in Outlook on Mac.
+- Added a property to the `event.completed` method of [Smart Alerts](/office/dev/add-ins/outlook/onmessagesend-onappointmentsend-events) add-ins to resize the width of the task pane that opens from a button in the dialog.
+- Extended support for the `errorMessageMarkdown` property of the `event.completed` method to Smart Alerts add-ins in Outlook on Mac.
 - Added a property to get or set whether an appointment is an all-day event.
 - Added events to activate an [event-based add-in](/office/dev/add-ins/develop/event-based-activation) on a message in read mode when it contains certain attachment types or custom internet headers.
 - Added a property and objects to temporarily set the body or subject displayed in read mode.