Remove-MSTTeamsAppInstallation

Teams: Removes a Teams App installation

Script

#Requires -Version 5.1

[CmdletBinding()]
Param(
    [Parameter(Mandatory = $true, ParameterSetName = 'byTeam')]
    [string]$TeamID,
    [Parameter(Mandatory = $true, ParameterSetName = 'byUser')]
    [string]$UserID,
    [Parameter(ParameterSetName = 'byTeam')]
    [Parameter(ParameterSetName = 'byUser')]
    [string]$AppId,
    [Parameter(ParameterSetName = 'byTeam')]
    [Parameter(ParameterSetName = 'byUser')]
    [string]$AppInstallationId
)

Process {
    try {
        [string[]]$Properties = @('DisplayName', 'TeamsAppId', 'Version', 'TeamsAppDefinitionId')
        [hashtable]$cmdArgs = @{'ErrorAction' = 'Stop'}

        if ($PSCmdlet.ParameterSetName -eq 'byTeam') {
            $cmdArgs.Add('TeamID', $TeamID)
        }
        else {
            $cmdArgs.Add('UserID', $UserID)
        }
        if ($PSBoundParameters.ContainsKey('AppId')) {
            $cmdArgs.Add('AppId', $AppId)
        }
        if ($PSBoundParameters.ContainsKey('AppInstallationId')) {
            $cmdArgs.Add('AppInstallationId', $AppInstallationId)
        }

        $null = Remove-TeamsAppInstallation @cmdArgs
        $cmdArgs.Remove('AppId')
        $cmdArgs.Remove('AppInstallationId')
        $result = Get-TeamsAppInstallation @cmdArgs | Sort-Object DisplayName | Select-Object $Properties

        if ($null -eq $result -or $result.Count -eq 0) {
            Write-Output "No remaining app installations found"
            return
        }
        foreach ($item in $result) {
            $item | Add-Member -NotePropertyName Timestamp -NotePropertyValue (Get-Date -Format 'yyyy-MM-dd HH:mm:ss') -PassThru -Force
        }
    }
    catch { throw }
}

Customize

TeamID string

Team identifier in Microsoft Teams

UserID string

User identifier in Microsoft Teams

AppId string

Teams App identifier in Microsoft Teams

AppInstallationId string

Installation identifier of the Teams App