![from left: Gloria Eichler, CPO at smartclip, Christian Osterhues, VP of People & Culture, and Shira Leffel, VP of Marketing & Product Education at smartclip](https://smartclip.wpenginepowered.com/wp-content/uploads/2024/06/preview-leadership-thumbnail-smartclip-new-1.jpg)
7 June 2024
Last modified: 15 March, 2022
When publishers reserve specific ad space on a website exclusively for specific advertisers, based on an agreed deal/price, this inventory becomes reserved inventory.
Reserved inventory is often a feature of programmatic guaranteed deals, and ads are served on a programmatic (automated) basis according to the terms of the deal.
Advertisers reserve inventory in advance for a range of reasons, such as to secure premium positions, to run time-sensitive campaigns, or to ensure ads appear alongside certain content.