Campaign hierarchies allow you to group campaigns under a top-level campaign. This can help in showing you the overall performance of a type of campaign over a year. For our webinar example, we want all the webinar campaigns that took place in 2020 to reside under a parent campaign called 2020 Webinar Campaigns. Let's see how to do this.
In the following screenshot, you can see that the parent campaign for our January 2020 webinar is 2020 Webinar Campaigns:
This means any numbers for this January campaign automatically come under this parent campaign.
In the following screenshot, we can see how the campaign hierarchy numbers show up under the parent campaign:
This shows the number of leads and contacts in the child campaigns, any opportunities that result from these campaigns, and any sales that result from these opportunities, which gives us...