What’s needed to create a “Display Network” campaign to start promoting an app in other apps and on mobile websites?
- Prior placement of an ad for the app on the Search Network
- The serial number of the promoted app
- The app package name (Android) and/or app ID (iOS) of the promoted app
- The selection of at least two mobile targeting options
Read more here: https://support.google.com/adwords/editor/answer/6402059?hl=en