I am fairly new to DPA so please forgive me if this is an obvious question but I am attempting to creating a report that will discover new VMs added to my VCenter so that I can ensure they are backed up. I also would like to see what's removed and maybe even changes in disk size.
You can start with looking at the System Report Template, Unprotected Clients. You might try a report that uses your vCenter as the Scope. As far removed VMs, we use the Daily Backup Summary and look for an Event Code of "VM not found".
Let us know if that helps!