We group logged-in visitors by the email domain they use to register. So for example email@example.com would be in the “example.com” user group. I use a custom variable to track that “example.com” value:
_paq.push(['setCustomVariable', 1, "Domain", '<?php echo $user_domain ?>', 'visit']);
This works exactly as I would want it, but I am missing a way to lookup the actual number of unique visitors per domain. This is the image from https://piwik.org/docs/custom-variables/#custom-variable-reporting
And this is how it looks in my 2.14.3 installation:
As you can see there are some columns missing. What should I do to see how many people from my user group visited? Could this be related to the “visit” scope?