In Campaign Manager, select Customize > Custom CTA > Build
Select a CTA Design
This custom CTA can be purely text with buttons for clear and concise messaging.
The Clickable Banner Ad/Small Image is similar in format to the display ads show on Facebook, Google Retargeting, Twitter, etc. but with no incremental marketing spend required. We recommend that you use an image around 800x400 in size.
The Full Page Ad maximizes the screen to deliver content to a user. Use this format for more complex messaging or emphasized visual effects to drive actions. Use a 1000x500 image for best results.
If your brand regularly does video advertising, you can also select that option and a video will begin auto-playing after an individual enters your giveaway. This is a great way to drive awareness to your YouTube channel.