Hi @Handian Sudianto ,
if you are using Backup Recovery Vault for backup you can try this script:
$arsv= Get-AzRecoveryServicesVault -ResourceGroupName "<name of the resource group>" -Name "<name of service recovery vault"
$backupJobs = Get-AzRecoveryServicesBackupJob -VaultID $arsv.ID
$backupJobs
of you are using Azure Backup Vault please try this (i haven't tested this):
Get-AzDataProtectionJob -ResourceGroupName "<name of the resource group>" -VaultName "<name of backup vault"
(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)
Regards
Andreas Baumgarten