Hi,
I think I am completely blind.
I find a report tool and the dashboard.
However, whenever I go in the report tool, I can see all created tickets and closed ticket.
I didn’t find the way to get a column with the “solution time” (time for which the ticket was open to close).
Neither, average solution time or such.
The onboard reporting is fairly basic.
You may want to consider using Grafana instead. It’s much more powerful than Zammads reporting and should provide nearly anything you require.