[Outlook] (event-based activation) Document limitation in new Outlook on Windows (#4953)

* Add limitation for new Outlook on Windows

* Reword

* Apply suggestion from review

Co-authored-by: Alex Jerabek <[email protected]>

* Apply suggestion from review

---------

Co-authored-by: Alex Jerabek <[email protected]>

Author: samantharamon

docs/outlook/autolaunch.md

@@ -1,7 +1,7 @@
 ---
 title: Configure your Outlook add-in for event-based activation
 description: Learn how to configure your Outlook add-in for event-based activation.
-ms.date: 01/09/2025
+ms.date: 01/13/2025
 ms.topic: concept-article
 ms.localizationpriority: medium
 ---
@@ -75,6 +75,10 @@ In all supported Outlook clients, the user must remain on the current mail item
 
 In addition to item switching, an event-based add-in also ceases operation when the user sends the message or appointment they're composing.
 
+### Event-based add-ins in the new Outlook on Windows
+
+In the new Outlook on Windows, you must keep the main window of the client open for the add-in to process the mail item. If the main window is minimized, the add-in will pause or stop working.
+
 ### Event-based add-ins in classic Outlook on Windows
 
 When developing an event-based add-in to run in the classic Outlook on Windows client, be mindful of the following: