Through the Self Service website, new ad placements can be set up for your app. For each ad placement, you have the ability to select the type of ad units that you would like to run for each placement including the ad format (Video, Interstitial, etc.), as well as whether to reward the user for completing ads or not.
NativeX has a prioritized order for the ad units based on best practices and internal analysis that will help maximize your revenue and improve user experience. We may also choose to have the active ad units competing based on their expected yield (in an auction) if the placement allows this.
We suggest you continue to have your ad unit prioritization managed by NativeX, as we are continually optimizing current and future ad units. However, if you would like to manage it on your own, contact us and we will consider your request.