Use waterfalls to create ranked line items for ad networks, which can improve fill rate and revenue. When ad requests go unfilled from the top waterfall line item, they stream down to the next level until the request is filled. Each placement can target specific eCPM and geo targets, so publishers can meet revenue goals without sacrificing fill rate.

To create and manage waterfalls, on the Unity Ads Monetization dashboard, select Waterfalls in the secondary navigation menu.