An Adcoin follow-on ad is a versatile ad unit designed to give the advertiser an opportunity to trigger action from their target audience. A follow-on ad can either be a static image or a video prompting clicks, a custom html ad for selling your product / booking test drives / getting likes / collecting sign-ups / etc. or even a chatbot, which can converse with your customers in real-time.
Where the completion ad excels in creating awareness and recall, the follow-on ad works the best in tandem with it. Once a user has tuned their attention into the completion ad and gained access to their desired content, they are much more likely to take an action on the follow-on ad. Make sure you include a clear call to action in yours.