The issue with this Customer is that the VBO Repository growth in about 3 - 4 years to 34 TB, and even lowering the retention it seems to never shrink
Thanks to opening a support ticket and after using VBO since 5 or more years with dozen of customers, I've just discovered that the retention policy doesn't work if overlap with the VBO backup job

So I suggest some improvements to VBO Product Team:
- change the default retention policy schedule from Midnight to Midday (or similar, not the night when the backup runs)
- clearly inform the sysadmin that is configuring VBO that if Backup Job overlap with retention policy job, the second one never run
- in the main VBO dashboard add a "running process" like in in Veeam Backup & Replication to check if the retention job is running or not: actually with this Customer the retention job is running since one week to purge more than 600 users and I don't have any way to understand if it's running or not, I have to look at some logs that are updated every two - three - four hours since the retention job is quite slow to process each user
- maybe make the retention job multiuser and improve the speed , it seems to me is single-user and super slow
Marco