Hope it is good to set up quota management in Avamar per domain or per server, like mtree quota.
I have multiple departments who are billed internally based on utilization. I would like to alert them/me as soon as they reach quota,though backups will continue.
It sounds like you'll be interested in the soft quota setting. You'll find some more information relevant to your use case in the article below
The following article may also be of interest..