Hi @JWalczak,
It’s unfortunately not possible to create reports that visualize which deal stage an activity happened in. You can display activities by deal stage, but this will show you how many activities there were for a deal that is now in a specific deal stage. In the visualization, they will not spread accordingly across the deal stages when they originally occured.
As a workaround, you might be able to filter for the activity owner. I’d assume that BD activity comes from specific BD users? This would work the same for contacts and deals. In fact, if you want to see this information across these two objects, why look at the object at all. You could simply look at activities by BD owners.
Heads-up, some report customization requires a Professional subscription. (If you don’t have one but are evaluating purchasing one, let me know!)
Navigate to Menu > Reports > Reports > Create report > Search reports and search for ‘Activity leaderboard by rep with type breakdown’. Click on the report and use the filters on the left (click on AND) to set a filter for Activity assigned to. This is where you can select your BD users.
You should now see only activity assigned to these users, effectively only BD activities. You can further customize the report to your needs, depending on your subscription level.
Let me know if you have any follow-up questions!