Introduction

Older versions of the Zivver OWA add-in may be present in users’ mailboxes. The deployment of these older versions may not be visible within the Exchange Admin Center, meaning the administrator can not uninstall the older versions via the interface.

Having an older version of the Zivver OWA add-in can result in negative effects like:

• When two different versions of Zivver are deployed to the same mailbox, it will likely lead to problems.
• Administrators have no direct insight into and control over the deployments of these older versions via the admin portal.
• Older versions of Zivver OWA add-in are no longer supported and have been deprecated. As a result of this, users with an old version will get a pop-up notification in Outlook about this requesting them to update.
  • This pop-up is also shown in Outlook Desktop/Classic, causing confusion and questions for users and admins, as the pop-up has nothing to do with the Zivver Office Plugin and it appears for every message sent.

To resolve this, the older version of the Zivver OWA add-in should be identified and removed via Powershell. We can do this via the Powershell commands below. Please note that we distinguish between different installation methods:

• Organization App - the Zivver OWA add-in was installed on an organization level by an administrator.
• User app - the Ziver OWA add-in was installed by a user themselves for their own mailbox.

The installation method determines the uninstallation method, which is detailed below.

Info

Microsoft can take up to 72 hours (3 days) to remove the add-in from the mailbox after you executed the steps below.

Note

Please be awere that versions 6 of the Zivver OWA add-in has a version number in the format 3.xxx.x. Make sure you are only removing the desired version(s).

Deleting the Zivver OWA organization App

1. Connect to Exchange online.
   Connect-ExchangeOnline
2. Get an overview of deployed add-ins with the name “Zivver”.
   Get-App -OrganizationApp | Format-Table -Auto DisplayName,AppVersion,AppId | Where-Object DisplayName -ieq "Zivver"
3. Identify the version you want to remove and copy the AppId.
4. Use the AppId to remove the add-in.
   Remove-App -OrganizationApp -AppId <AppId>

Deleting the Zivver OWA User App

1. Connect to Exchange online.
   Connect-ExchangeOnline

2. Get an overview of add-ins named “Zivver”.
   Get-App | Format-Table DisplayName,AppVersion,AppId | Where-Object DisplayName -ieq "Zivver"

   a. Alternatively, use the following command to create the overview for a single mailbox:
   Get-App -Mailbox user@domain.com | Format-Table DisplayName,AppVersion,AppId | Where-Object DisplayName -ieq "Zivver"

3. Identify the version you want to remove and copy the AppId.

4. Use the AppId to remove the add-in.
   Remove-App -Identity <AppId> -Mailbox user@domain.com