Partners on the One Ad per Page business model that have a DFP tag implemented with Marfeel can change their ads directly in DFP (DoubleClick for Publishers). 

This practice provides publishers with more control and the ability to instantly implement new ads in their Marfeel Progressive WebApp (PWA) without having to contact Marfeel.

For more information on how to create ad units in DFP, see the Create an ad unit article in DFP's online help.

Conversely, if partners want Marfeel to implement the changes, publishers have to generate the ad tag and provide it to Marfeel 72 hours prior to when they want the ad implemented. For a detailed tutorial on how to generate an ad tag in DFP, see this article in the DFP online help.

For partners on the Enterprise business model that want to serve a direct ad campaigns, see the Publisher-Managed Inventory in Enterprise article.