How can I create custom ad unit sizes in the MoPub platform? I have a takeover campaign with custom creative that doesn’t adhere to normal ad size standards.
You can easily set up a custom size ad unit in the MoPub UI. You can can upload custom sized creatives by selecting “custom” as the ad format when setting up an ad unit. However, it’s recommended to reserve custom ad units for your guaranteed/direct sold campaigns, as not all ad networks or marketplace demand partners have inventory for custom sizes.