List of backup more than 90 days

dolphin168 

You can use below powershell commandlet

Get-AzRecoveryServicesBackupRecoveryPoint 

 Here is a sample script you can run, change the start and end date as per your need: 

$vmName = ""
$vaultName = ""

$vaultId = (Get-AzREcoveryServicesVault -Name $vaultName).ID

$Container = Get-AzRecoveryServicesBackupContainer -ContainerType AzureVM -Status Registered -VaultId $vaultId -FriendlyName $vmName

$item = Get-AzRecoveryServicesBackupItem -Container $Container -WorkloadType AzureVM -VaultId $vaultId
$startDate = (Get-Date).AddDays(-27)
$endDate = (Get-Date).AddDays(3)

Get-AzRecoveryServicesBackupRecoveryPoint -Item $item -VaultId $vaultId -StartDate $startDate.ToUniversalTime() -EndDate $endDate.ToUniversalTime()