Limitation

Last Updated : Aug 06, 2025 |
The Avaya Outlook Meetings Add-In has the following limitations:
  • The Avaya Outlook Meetings Add-In does not support the Reserve meeting feature on Windows Classic Outlook.

  • The add-in does not schedule meetings with advanced recurrence options. For example, you cannot schedule a recurring meeting for every second Monday and fourth Friday of every year.

  • When you delete a single occurrence of a recurring event, no notification is generated for the deleted occurrence due to a limitation in the Microsoft Graph API.

  • When a host or delegate creates or updates a meeting, if the add-in takes more than 5 seconds to respond, Outlook shows a message with two options: Send and Don't Send. To complete the meeting setup, click Send. If you click Don't Send, the meeting will appear in Avaya Aura® Web Gateway but not in Outlook. In this scenario, reopen the meeting, make a minor adjustment, and click Send to ensure if it is synced correctly with Avaya Meetings Server.

  • The Call to Contact feature is not supported.

  • The Integrated Windows Authentication (IWA) feature is not supported.

  • Avaya Outlook Meetings Add-In cannot be controlled through Avaya Workplace AADS auto-configuration settings.

To delete a meeting from Avaya Aura® Web Gateway when a user deletes a meeting from Outlook, Outlook Exchange Online is a prerequisite, and Avaya Outlook Meetings Add-In backend server must be configured as provided in Installing Avaya Outlook Meetings Add-In Backend using Script
Table 1: Modern Outlook UI in a web browser or the new Outlook for Windows

Use Case

Exchange Online

Exchange 2019 on-premises (Cumulative Update 1 or later)

Exchange 2016 on-premises (Cumulative Update 6 or later)

Create and update Reserved or Non-Reserved Meetings

Yes

Not applicable

Not applicable

Delete Reserved or Non- Reserved Meetings

Yes (If backend server setup)

Not applicable

Not applicable

Table 2: Windows (classic) Version 1910 (Build 12130.20272) or later

Use Case

Exchange Online

Exchange 2019 on-premises (Cumulative Update 1 or later)

Exchange 2016 on-premises (Cumulative Update 6 or later)

Create, update, and delete Reserved Meetings

No

No

No

Create, update, and delete Non-reserved Meetings

Yes

Yes

Yes

Table 3: Mac (new Outlook) Version 16.47 (21031401) or later

Use Case

Exchange Online

Exchange 2019 on-premises (Cumulative Update 1 or later)

Exchange 2016 on-premises (Cumulative Update 6 or later)

Create, update Reserved or Non-reserved Meetings

Yes

Yes

Yes

Delete Reserved or Non-reserved Meetings

Yes (If backend is enabled)

Yes (If backend enabled)

Yes (If backend is enabled)

Note:

The add-in is currently not supported on mobile devices.

For more information about platform support, see Office client application and platform availability for Office Add-ins