We are trying to track reports on specific sales campaigns and have created tags and labels as a way to go back and create filters for activities on those.  However, from what I have seen, there isn't a great way to report on that without just going in and looking at activities.  

Has anyone come up with a solution for this?  When previously using salesforce at another company, I know that campaigns were attached to leads/opportunities and then could be seen in reporting.  Hoping to understand how to do this in pipedrive! Any feedback is appreciated.