Backup-TeamsMeetingPolicies

<#
.SYNOPSIS
    Backs up all Teams meeting policies to JSON.

.DESCRIPTION
    Exports the full configuration of every Teams meeting policy to a
    timestamped JSON file, giving you a restore point to compare against
    or roll back to before making tenant wide meeting policy changes.

.PARAMETER BackupPath
    Folder to write the backup files to. Defaults to the current directory.

.EXAMPLE
    .\Backup-TeamsMeetingPolicies.ps1 -BackupPath C:\Backups\TeamsPolicies

.NOTES
    Requires the MicrosoftTeams module and an active Connect-MicrosoftTeams session.

.AUTHOR
    Shehryar Hassan
#>

param(
    [string]$BackupPath = (Get-Location).Path
)

$stamp = Get-Date -Format "yyyy-MM-dd_HHmmss"
$folder = Join-Path $BackupPath "TeamsMeetingPolicies_$stamp"
New-Item -ItemType Directory -Path $folder -Force | Out-Null

$policies = Get-CsTeamsMeetingPolicy
foreach ($policy in $policies) {
    $safeName = $policy.Identity -replace "[:\\/]", "_"
    $file = Join-Path $folder "$safeName.json"
    $policy | ConvertTo-Json -Depth 6 | Out-File -FilePath $file -Encoding utf8
}

Write-Host "Backed up $($policies.Count) meeting policy(ies) to $folder" -ForegroundColor Cyan