Get-AzureBlobLifecyclePolicyReport

<#
.SYNOPSIS
    Reports blob lifecycle management policies across storage accounts.

.DESCRIPTION
    Checks every storage account for a configured blob lifecycle
    management policy and flags accounts with none, since without one,
    old and rarely accessed data sits in the most expensive access tier
    indefinitely.

.EXAMPLE
    .\Get-AzureBlobLifecyclePolicyReport.ps1

.NOTES
    Requires the Az.Storage module and an active Connect-AzAccount session.

.AUTHOR
    Shehryar Hassan
#>

$accounts = Get-AzStorageAccount

$report = foreach ($account in $accounts) {
    $policy = Get-AzStorageAccountManagementPolicy -ResourceGroupName $account.ResourceGroupName -StorageAccountName $account.StorageAccountName -ErrorAction SilentlyContinue
    [pscustomobject]@{
        StorageAccountName = $account.StorageAccountName
        HasLifecyclePolicy = [bool]$policy
        RuleCount           = if ($policy) { $policy.Policy.Rules.Count } else { 0 }
    }
}

$report | Format-Table -AutoSize
$report | Where-Object { -not $_.HasLifecyclePolicy } | ForEach-Object { Write-Warning "$($_.StorageAccountName) has no lifecycle policy." }