DoubleClick has the ability to send dynamic data through dynamic feeds. These feeds are tabular data, like a CSV file. There are instructions on creating one here:
After the feed is created, you can evidently make a profile and have it generate code that can be sent to your ad. See the instructions in this main article:
.setElementProperty()) or DOM APIs (like setting an element’s
.innerHTML) to modify the content in your ad, probably within an On Scene Load handler.