$rgName = <resource group name for the storage> $accountName = <storage account name> $account = Get-AzStorageAccount -ResourceGroupName $rgName -Name $accountName if ($account.KeyCreationTime.Key1 -eq $null -or $account.KeyCreationTime.Key2 -eq $null){ Write-output ("You must regenerate both keys at least once before setting expiration policy") } else { $account = Set-AzStorageAccount -ResourceGroupName $rgName -Name $accountName -KeyExpirationPeriodInDay 90 } $account.KeyPolicy.KeyExpirationPeriodInDays