Answer:
Oreo still advertises on traditional media because some segments of the population (for example, older people) do not use social media as often.
To make sure that the message is consistent across platforms, first, what needs to be consistent has to be defined. Ideally, all ads should hint at the product's quality.
Having set quality as the goal of the message, different types of ads can be run among platforms as long as the goal of all of them is to showcase the quality of the good.
